EASY
10th CBSE
IMPORTANT
Earn 100

What was the classification made by Lavoisier?

Important Questions on Periodic Classification of Elements

MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 14
What are the postulates of atomic theory? Who gave this theory?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 15
What was the basis of classification of elements according to modern periodic table?
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 15
Why Moseley chose atomic numbers for his basis of classification of elements?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 15
Why is atomic number called proton number?
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 2>Q 16

Give the electronic configuration of:

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

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?