EASY
9th Kerala Board
IMPORTANT
Earn 100

Which among these atoms gains electrons?

  Electronic configuration
Sodium atom 2,8,1
Chlorine atom 2,7

Important Questions on Periodic Table

EASY
9th Kerala Board
IMPORTANT
When the size of an atom increases, does the attraction of the nucleus on the outermost electron increases or decreases?
EASY
9th Kerala Board
IMPORTANT
What is the change in ionisation energy as the size of the atom increases?
EASY
9th Kerala Board
IMPORTANT
Can you find how ionisation energy changes as we move from top to bottom in a group?
EASY
9th Kerala Board
IMPORTANT
What is the general trend in the variation of ionisation energy on moving across a period from left to right in the periodic table?
EASY
9th Kerala Board
IMPORTANT
What is the relationship between the metallic character and the size of the atom?
EASY
9th Kerala Board
IMPORTANT

How the metallic character of first group elements varies on moving from top to bottom in the group? Come to a conclusion by assessing the size of the atom.

Element

Electronic configuration
H 1
Li 2, 1
Na  2, 8, 1
K 2, 8, 8, 1
Rb 2, 8, 18, 8, 1
Cs 2,8, 18, 18, 8, 1
Fr 2, 8, 18, 32, 18, 8, 1
MEDIUM
9th Kerala Board
IMPORTANT
Is the element with the high ionisation energy metallic or non-metallic?
MEDIUM
9th Kerala Board
IMPORTANT
Is the element with low ionisation energy is metallic or non-metallic?