What happens to the metallic character of the elements as we go down in a group of the periodic table?

Academic Chemistry NCERT Class 10

On going down in a group of the periodic table, the metallic character of elements increases.

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Updated on: 10-Oct-2022

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(a) What is the usual number of valence electrons and valency of group 18 elements of the periodic table?(b) What happens to the number of valence electrons in the atoms of elements as we go down in a group of the periodic table?
(a) How does the tendency to lose electrons change as we go down in group 1 of the periodic table? Why does it change this way?(b) How does the tendency to gain electrons change as we go down in group 17 of the periodic table? Why does it change this way?
Metallic character _____________ down the group.Atomic size ___________________ along the period.Electronegative character _______________ down the group.
How does the valency of elements vary in going down a group of the periodic table?
(a) How does the electropositive character of elements change on going down in a group of the periodic table?(b) State how the valency of elements varies (i) in a group, and (ii) in a period, of the periodic table.
How do the atomic radii of elements change as we go from left to right in a period of the periodic table?
(a) How does the size of atoms (atomic size) generally vary in going from left to right in a period of the periodic table? Why does it vary this way?(b) What happens to the metallic character of the elements as we move from left to right in a period of the periodic table?
Give alongside is a part of the periodic table :As we move horizontally from left to right:Li Be B C N O F Na Mg Al Si P S Cl (i) What happens to the metallic character of the elements?(ii) What happens to the atomic size?
How does the metallic character of elements change along a period of the periodic table from the left to the right and why?
What property do all the elements in the same group of the periodic table as fluorine have in common?
(a) What is a group in the periodic table? In which part of a group would you separately expect the elements to have (i) the greatest metallic character (ii) the largest atomic size?(b) In what respects do the properties of group 1 elements differ from those of group 17 elements? Explain with examples by taking one element from each group. (c) From the standpoint of atomic structure, what determines which element will be the first and which the last in a period of the periodic table? (d) Explain why, the properties of elements are repeated after 2, 8, 18, and 32 elements in the periodic table. (e) What are the advantages of the periodic table?
(a) How does the chemical reactivity of alkali metals vary on going down in group 1 of the periodic table?(b) How does the chemical reactivity of the halogens vary on going down in group 17 of the periodic table?
How would the tendency to lose electrons change as we go from left to right across a period of the periodic table?
Halogens belong to group ____________ of the Periodic Table.
Carbon, Group (14) element in the Periodic Table, is known to form compounds with many elements. Write an example of a compound formed with(a) chlorine (Group 17 of Periodic Table)(b) oxygen (Group 16 of Periodic Table)

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