Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Additionally, which element is the most active metal? Answer to Which of the following is the most metallic element? (a) Element X is neon (Ne). 31. (i) As we go down the group metallic character increases and decreases along the period. (b) Identify the most (i) Metallic and (ii) Non-metallic element in period 3. On the other hand non-metallic character increases with increase in atomic number across a period. So, the most metallic element is Li (Lithium). Hence, among the above elements, Li being placed on extreme left side is most metallic and F being placed on extremely right side is most non-metallic element. Keeping this in view, what is the most metallic element in period 3? Arrange these elements in the expected order of increasing non-metallic character. Question 21. Compared to other elements in the third row its ionization enthalpy is the lowest. a) in Group 1 at the top b) in Group 1 at the bottom c) in Group 17 at the top d) in Group 17 at the bottom. So, the metallic properties of elements tends to decrease across a period and increase down a group. The metallic character of an element can be defined as how readily an atom can lose an electron. Elements with low electronegativity tend to have more metallic properties. (b) Identify the most (i) Metallic and (ii) Non-metallic element in period 3. The most metallic element of 2nd period is Lithium (Li). Ask questions, doubts, problems and we will help you. Element in the six period and group III A 5. The cancer risk (CR) value induced by PM-bound metals was 1.41 × 10 −4 for adults and 2.59 × 10 −4 for children while non-cancer risk (NCR) was 2.59 for adults and 3.37 for children. The elements of the second period of the Periodic Table are given below: Li, Be, B, C, N, O, F (i) Explain why atomic radius decreases from Li to F. (ii) Identify the most metallic and non-metallic elements among the above elements. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. From right to left across a period, metallic character increases because the attraction between valence electron and the nucleus is weaker, enabling an easier loss of electrons. The most non-metallic element is F (fluorine). Thus, the most metallic elements (such as caesium) are found at the bottom left of traditional periodic tables and the most nonmetallic elements (such as neon) at the top right. Question.1The elements of the second period of the Periodic Table are given below: Li Be B C N O F (a) Give reason to explain why atomic radii decrease from Li to F. (b) Identify the most (i) metallic and (ii)non-metallic element. Question 7. increasing non-metallic character. Answer to Which of the following is the most metallic element? Determine which element has the suffix? (As we move from left to right across the periods of the periodic table, the non-metallic character increases. Metallic character decreases as you move from left to right across a period (row) of the periodic table. (iii) As the number of valance electrons in a group is the same, all the elements in a group have the same valency. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. Question 7. (i) As we go down the group metallic character increases and decreases along the period. Keeping this in view, what is the most metallic element in period 3? The ionization energies (in kJ/mol) for an element in period 3 are listed below. fluoride suffix * Down a group the element become (more/ less) metallic. The nonmetals or non-metals are a group of elements located on the right side of the periodic table (except for hydrogen, which is on the top left). The Lanthanide and Actinide series (the two rows on the bottom) are also metals. Hence, both of these will form ionic compound, more readily than the other given elements. Element in the fourth period and group IV A 2. (ii) Most non-metallic element is ‘F’ because it can gain electrons easily due to smallest atomic size. (b) Li: most metallic F: most non-metallic (c) Valency first increases from +1 to 4 and then decreases from -3 to 0. It is not found in nature as a free element. Name the most metallic element in second period and non metallic element. What is the similarity between elements Li, Be, B, C, N, O, F and Ne belonging to the second period? NEET Inorganic Chemistry Classification of Elements and Periodicity questions & solutions with PDF and difficulty level Of … 1. Fluorine - Fluorine has an atomic number of 9 and is denoted by the symbol F. Elemental fluorine was first discovered in 1886 by isolating it from hydrofluoric acid.Fluorine exists as a diatomic molecule in its free state (F 2) and is the most abundant halogen found in the Earth's crust.Fluorine is the most electronegative element in the periodic table. Additionally, which element is the most active metal? Metallic- Li,Be and nonmetallic- B,C,N,O,F,Ne.-6 ; View Full Answer Most Metallic: Li. Select the element from the options listed below. During the sampling period, metallic elements constituted a minor fraction (5%) in PM 2.5, but exhibited significant threats to human health. As the elements in Period 3 are considered from left to right, they tend to a) lose electrons more readily and increase in metallic character b) lose electrons more readily and increase in nonmetallic character c) gain electrons more readily and increase in metallic character d) gain electrons more readily and increase in nonmetallic character ... Name the element ‘X’ and state whether it is metallic or non-metallic. Element in the third period and group VI A 3. Sulfur and chlorine. Answer. These elements are distinctive in that they typically have low melting and boiling points, don't conduct heat or electricity very well, and tend to have high ionization energies and electronegativity values. Nonmetals tend to gain electrons in chemical reactions and have a high attraction for electrons within a compound. For example, let us consider elements of second and third periods. The elements of the second period of the Periodic Table are given below : Li, Be, B, C, N, O, F, Ne (a) Give reason to explain why atomic radius decreases from Li to F. (b) Identify the most metallic and non - metallic elements. 1. This is because the capacity to lose electrons from outermost orbit of an atom (called ionisation energy) decreases. Hence, the electrons are pulled in closer to the nucleus which leads to contraction of the atom and thus atomic radius is decreased. The high melting points suggest that the force of attraction between the "atoms" making up the solids are strong. Mention the type of … At which location in the periodic table would the most active metallic element be found? Elements. (AI, Foreign 2008) Answer: (a) In a period on moving from left to right, the atomic number increases, the number of shells remains the same, nuclear charge increases the force of attraction on electrons towards the nucleus. Question 2. group and periods of the periodic table. X would most likely be in the same group of the Periodic Table as : Metallic character decreases across a period from left to right. Cesium - The most ACTIVE metal on EARTH! Thus the tendency of Sodium is to lose its valence electron. Polonium is One Nasty Element. Cesium - The most ACTIVE metal on EARTH! In sodium, only one electron per atom is involved in the metallic bond - the single 3s electron. Note that there is no clear division between metallic and non-metallic character. This is because on moving from left to right in a period, there is an increase in the no. (e) The most reactive metal: Lithium (Li). Be reminded that you need to consider metals from Groups 1 and 2 and the non-metals from the halogen group (Group 7). (d) The most reactive non-metal: Fluorine (F). The best way in choosing the combination that will form ionic bond is by computing the electronegativity difference between the two elements. IE 1. Name the most metallic and most non-metallic element of period 2. F, Cl and Br are the elements each having seven valence electrons. Element in the fourth period and group VI A 4. The structures of the elements change as you go across the period. Q15. Most metallic element … This is because atoms more readily accept electrons to fill an electron shell as you move across a period. Non-metallic Character of a Metal. State which of the elements are – metallic ; non-metallic ; noble gases; in each of the periods 2 and 3. For example, Lithium of group 1A and second period shows similarities with the properties of magnesium which are located in the 2nd group and 3rd period . (b). Write the valency and usual number of valence electrons of group 18 of the Periodic Table. It pulls/ attract the valence electrons at the centre more efficiently and thus the atomic size decreases. (c) The element with largest atomic radius: Lithium (Li). On the left hand side of period 3 we find the elements sodium, magnesium and aluminium. On the other hand non-metallic character increases with increase in atomic number across a period. The elements of the second period of the periodic table are given along: Li Be B C N O F. (a) Give a reason to explain why atomic radii decrease from Li to F. (a) The atomic radii decreases from Li to F because of increase in nuclear charge which tends to pull electrons closer to nucleus and reduces the size of an atom. This is related to the increase in the number of electrons in the outer shell of their atoms . Hence, the tendency to lose electrons decreases.) You may choose the metallic and the non-metallic element for this activity. 1 Mark Questions 1. Answer: (a) Na atom is bigger in size this is because as we move from Na to Cl, the atomic number goes on increasing and the nuclear charge also increases. It is an alkali metal having atomic number 3. Answer: The most metallic elements is francium (group 1) and most non-metallic element is fluorine (group 17). (b) Identify the most (i) Metallic and (ii) Non-metallic element. Solutions . (ii) As the metallic character decreases along the period, the non-metallic character increases. Osmium is the densest naturally occurring element, with an experimentally measured (using x-ray crystallography) density of 22.59 g/cm 3. Question 1 options: A) Cs B) Ba C) Na ... Mg+(g) → Mg2+(g) + E–? (b) Identify the most (i) Metallic and (ii) Non-metallic element. The Fisher Scientific Interactive Period Table of Elements is a 21st century version of Mendeleev’s ingenious creation. Similarly, are Group 3 elements metals? (ii) On moving from left to right in a period, the metallic character of elements decreases and non- metallic character increases. Nonmetals tend to gain electrons in chemical reactions and have a high attraction for electrons within a compound. Three metallic structures. Meanwhile, if we look at the periodic table trends as we move across a period from the left to the right, the metallic character usually decreases. The elements of the second period of the Periodic Table are given below: Li, Be, B, C, N, O, F, The elements of the second period of the periodic table are given along: Li Be B C N O F. Consider the following elements : Na, Ca, Al, K, Mg, Li (a) Which of these elements belong to the same period of the periodic table ? Chlorine is the most non-metallic element. (ii) On moving from left to right in a Periodic Table, metallic character decreases and non-metallic character increases. Element X forms a chloride with formula, XCl 2, which is a solid with a high melting point. Group 3 is a group of elements in the periodic table. An element X is in second period of group 16 of the periodic table. of electrons due to increase in the atomic number. buyers and sellers are chemical elements. Fluorine gas reacts explosively with many other elements and compounds and is considered to be one of the most dangerous known substances. 4. Guys,pls answer this ques.... Share with your friends. Na is bigger than Mg. (b) (i) The most metallic element is Na and most non-metallic element is Cl in out of these elements. So. sodium . (AI, Foreign 2008) Answer: (a) In a period on moving from left to right, the atomic number increases, the number of shells remains the same, nuclear charge increases the force of attraction on electrons towards the nucleus. Most things on the left. Na is bigger than Mg. (b) (i) The most metallic element is Na and most non-metallic element is Cl in out of these elements. (a) Na is bigger than Mg. Question 2 Options: A) Electron Affinity B) First Ionization Energy C) Second Ionization Energy D) Third Ionization The ... (in kJ/mol) for an element in period 3 are listed below. (iii) As the number of valance electrons in a group is the same, all the elements in a group have the same valency. Write true or false for the following statements: Na, Mg, Li, Al, Si, F, P and Cl belong to the third period of the Modern periodic table. The elements of the second period are:Li, Be, B, C, N, O, F, Ne(a) The element with highest first ionisation enthalpy: Neon (Ne). So. Name the most metallic and most non- metallic elements in the Periodic Table. It is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. The elements of the second period of the Periodic Table are given below: Li, Be, B, C, N, O, F (i) Explain why atomic radius decreases from Li to F. (ii) Identify the most metallic and non-metallic elements among the above elements. The elements of the second period of the Periodic Table are given below: Li Be B C N O F (a) Give a reason to explain why atomic radii decrease from Li to F. (b) Identify the most (i) metallic and (ii)non-metallic element. It is the second most abundant element and can be extracted from natural gas. When the group is understood to contain all of the lanthanides, it subsumes the rare-earth metals.Yttrium, and less frequently scandium, are sometimes also counted as rare-earth metals. A metalloid is a type of chemical element which has a preponderance of properties in between, or that are a mixture of, those of metals and nonmetals.There is no standard definition of a metalloid and no complete agreement on which elements are metalloids. Element in the fourth period and group VI A 4. The non-metals or non-metallic elements; hydrogen (H), carbon (C), nitrogen (N), oxygen (O), phosphorus (P), sulphur (sulfer) (S), selenium (Se), (Uuo may belong here) and the noble gases form a relatively small group with a step like pattern towards the left-hand side of the periodic table (hydrogen being the odd one out on the right of the table). The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties.The structure of the table shows periodic trends.The seven rows of the table, called periods, generally have metals on the left and nonmetals on the right. (i) On moving from left to right along a period of the Periodic Table, atomic number increases, i,e., number of protons and electrons increases which ultimately increases the nuclear charge. Sodium, magnesium and aluminium all have metallic structures. (a) It is because nuclear charge increases due to … Argon, chlorine, sulfur and phosphorus are non-metals. Osmium (from Greek ὀσμή osme, "smell") is a chemical element with the symbol Os and atomic number 76. Click to see full answer Moreover, which element in period 3 is the most metallic? The elements of the third period of the periodic table are given below: Group I II III IV V VI VII Na Mg Al Si P S Cl (a) Which atom is bigger - Na or Mg ? Properties of Period 3 Elements Carbon forms covalent bonds with other non-metals with an oxidation state of −4, −2, +2 or +4. Write true or false for the following statements: Na, Mg, Li, Al, Si, F, P and Cl belong to the third period of the Modern periodic table. Question.2 The elements of the third period of the Periodic Table are given below: (a) Which atom is bigger, Na or Mg? fluoride suffix eg. The elements of the second period of the Periodic Table are givne below: (i) Explain why atomic radius decreases from Li to F. (ii) Identify the most metallic and non-metallic elements among the above elements. of electrons due to increase in the atomic number. (b) As one moves from top to bottom in period, the metallic character of the elements increases. (a) Atomic radii decreases in moving from left to right along a period due to increase in nuclear charge which pull the electrons closer to the nucleus and reduces the size of the atom. The answer is Chlorine. NEET Inorganic Chemistry Classification of Elements and Periodicity questions & solutions with PDF and difficulty level Hope that helps. The elements of the second period of the Periodic Table are givne below: (i) Explain why atomic radius decreases from Li to F. (ii) Identify the most metallic and non-metallic elements among the above elements. The fact that the metallic elements are found on the left side of the periodic table offers an important clue to the nature of how they bond together to form solids. A diagonal relationship in S block elements exists between adjacent elements which are located in the second and third period of the periodic table. eg. What is the similarity between elements Li, Be, B, C, N, O, F and Ne belonging to the second period? The elements of the second period of the Periodic Table are given below:Li, Be, B, C, N, O, F(i) Explain why atomic radius decreases from Li to F.(ii) Identify the most metallic and non-metallic elements among the above elements. eg. Element in the third period and group VI A 3. Chlorine and fluorine. It also has high reactivity. The natural element with the highest metallic character is cesium, which is found directly above francium on the periodic table. Some tables vary, but all the metals should be everything including and on the left of Aluminum, Gallium, Tin, and Bismuth - excluding Hydrogen, and not counting Metalloids. Name the most metallic and most non-metallic element in the Periodic Table. Most elements are metals. Properties of Period 3 Elements The first three are metallic, silicon is giant covalent, and the rest are simple molecules. Why ? Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. The goods are electrons and the currency being exchanged is energy Boron and fluorine. Name the elements in the correct order of their increasing atomic numbers present in the first, second, and third short periods of the periodic table. Skip Navigation ... Second ionization energy. become less metallic. The elements of the second period of the Periodic Table are given below: Li, Be, B, C, N, O, F. Consider the following elements : Na, Ca, Al, K, Mg, Li (a) Which of these elements belong to the same period of the periodic table ? * Across a period the elements become (more/ less) non-metallic. (D) being in group IIA is most electropositive among given elements while E being in group VIIA is most electronegative among the given elements. The most metallic element is francium.However, francium is a man-made element, except for one isotope, and all isotopes are so radioactive they almost instantly decay into another element. (b) The element with highest electronegativity: Fluorine (F). The most reactive nonmetals reside in the upper right portion of the periodic table. (ii) On moving from left to right in a period, the metallic character of elements decreases and non- metallic character increases. These low melting and boiling points are typical of non-metals. The most non-metallic element is F (fluorine). Element in the fourth period and group IV A 2. For example, let us consider elements of second and third periods. The most reactive nonmetals reside in the upper right portion of the periodic table. chloride suffix eg. (c) How does valency change from Li to Ne ? The elements Li, Na and K each having one valence electron, are in period 2, 3 and 4 respectively of modern periodic table. This is because on moving from left to right in a period, there is an increase in the no. (a) Na is bigger than Mg. Non-metallic Character of a Metal. So, the most metallic element is Li (Lithium) (ii) As the metallic character decreases along the period, the non-metallic character increases. Two elements X and Y belong to group 1 and 2 respectively in the same period of the periodic table. Element X forms a chloride with the formula XCl 2, which is a solid with a high melting point. Hope that helps. Element in the six period and group III A 5. Element in the second period and group VII A The correct order is: (a) 12345<<<< (b) 54321<<<< (c) 41325<<<< (d) 54213<<<< Despite the lack of specificity, the term remains in use in the literature of chemistry.. Most metallic element is Na. F, Cl and Br are the elements each having seven valence electrons. The most non-metallic element has the “ide” suffix. The most active nonmetal in any period is second to last (halogens), right before the noble gases. (iv) Which are the most metallic and the most non-metallic elements in above table. 3. Elements on the left side of the periodic table are more likely to donate an electron than elements on the right side of the table. Answer. In the second period, lithium and beryllium are metals, boron is a metalloid while carbon, nitrogen, oxygen, fluorine and neon are non … Hence Sodium is the most metallic element. Answer: (i) (a) As one moves from left to right in period, the metallic character of an element decreases and then it changes to non-metallic character. Carbon is the fourth most abundant element in the universe by mass after hydrogen, helium and oxygen and is the second most abundant element in the human body by mass after oxygen, the third most abundant by number of atoms. 1. 2. 2. Write two reasons responsible for late discovery of noble gases. The elements Li, Na and K each having one valence electron, are in period 2, 3 and 4 respectively of modern periodic table. Share 0 . B. the elements of the second period of the periodic table are given below: Li Be B C N O F i) Give reason to explain why atomic radii decrease from Li to F. ii) Identify the most metallic and non metallic element. The most active nonmetal in any period is second to last (halogens), right before the noble gases. Polonium is a rare, radioactive metalloid that occurs naturally. Moving from left to right across a period, the elements. The answer is Chlorine.

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