MEDIUM
10th CBSE
IMPORTANT
Earn 100

Give the electronic configuration of:

(a) Calcium, (b) Magnesium, (c) Aluminium, (d) Lithium and (e) Sodium.

Important Questions on Periodic Classification of Elements

EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 16
Why is modern periodic table called Bohr's table?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 17
Define periodicity of an element.
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 17
What is the cause of periodicity?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 17
What are groups and periods?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 18
What happens to the trend of valence electrons on moving from Li to K?
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 18
What happens to the trend of valency on moving from Be to Ca?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 18
Define atomic radius.
HARD
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 19
How are the maximum number of electrons accommodated in a shell? Illustrate with an example for each shell.