EASY
9th Kerala Board
IMPORTANT
Earn 100

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

Important Questions on Periodic Table

MEDIUM
9th Kerala Board
IMPORTANT
Chemistry Standard IX Part 1>Chapter 4 - Periodic Table>Exercise 1
Is the element with the high ionisation energy metallic or non-metallic?
MEDIUM
9th Kerala Board
IMPORTANT
Chemistry Standard IX Part 1>Chapter 4 - Periodic Table>Exercise 1
Is the element with low ionisation energy is metallic or non-metallic?
MEDIUM
9th Kerala Board
IMPORTANT
Chemistry Standard IX Part 1>Chapter 4 - Periodic Table>Exercise 1
How does electronegativity vary from top to bottom in a group?
MEDIUM
9th Kerala Board
IMPORTANT
Chemistry Standard IX Part 1>Chapter 4 - Periodic Table>Exercise 1
What happens to the electronegativity when we move across a period?
MEDIUM
9th Kerala Board
IMPORTANT
Chemistry Standard IX Part 1>Chapter 4 - Periodic Table>Exercise 1
Where will be the position of the elements with high electronegativity in the periodic table?
MEDIUM
9th Kerala Board
IMPORTANT
Chemistry Standard IX Part 1>Chapter 4 - Periodic Table>Exercise 1
Where will be the position of the elements with low electronegativity in the periodic table?
MEDIUM
9th Kerala Board
IMPORTANT
Chemistry Standard IX Part 1>Chapter 4 - Periodic Table>Exercise 1
What is the relationship between electronegativity and the size of an atom?
MEDIUM
9th Kerala Board
IMPORTANT
Chemistry Standard IX Part 1>Chapter 4 - Periodic Table>Exercise 1
Is there any relationship between electronegativity and metallic and non-metallic characters? Explain.