EASY
10th CBSE
IMPORTANT
Earn 100

Name the following:

The valency of elements in group 1.

Important Questions on Periodic Classification of Elements

EASY
10th CBSE
IMPORTANT
The noble gas having the electronic configuration 2, 8, 8 is (Neon/ Argon).
EASY
10th CBSE
IMPORTANT
The most electronegative element of second period. (Oxygen/ Fluorine)
MEDIUM
10th CBSE
IMPORTANT

Name the following:

A greenish yellow gas other than chlorine.

EASY
10th CBSE
IMPORTANT
The element which is most electronegative in the third period (Argon/ Chlorine)
MEDIUM
10th CBSE
IMPORTANT

Name the following:

The most non-metallic element in the third period.

EASY
10th CBSE
IMPORTANT
Name the following:
The most metallic element in the third period. (Argon/ Sodium)
EASY
10th CBSE
IMPORTANT
Name the following:
The biggest atom in third period. (Sodium/ Chlorine)
MEDIUM
10th CBSE
IMPORTANT

Name the following:

The smallest atom in the third period.