EASY
10th CBSE
IMPORTANT
Earn 100

Give reason:
Sodium and potassium are called alkali metals.

Important Questions on Periodic Classification of Elements

EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 17
Define electronegativity.
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 17
Compare the non-metallic character across a period and down a group.
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 17
 What happens to the size of atoms as we move vertically downward from Li to Fr?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 18
How many periods and groups are there in modern periodic table?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 18
How many transition elements are present in modern periodic table?
EASY
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 18
How elements are classified in the long form of periodic table?
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 18
What is the zigzag line running diagonally across the periodic table?
MEDIUM
10th CBSE
IMPORTANT
Concise Chemistry Part 2>Chapter 5 - Periodic Classification of Elements>MOCK TEST - 1>Q 19
How does the tendency to lose electrons vary down the group 17? Give reasons.