MEDIUM
10th CBSE
IMPORTANT
Earn 100

In the following table, six elements and of the modern periodic table with atomic numbers to are given :
In the compound between and what type of bond will be formed?

Important Questions on Periodic Classification of Elements
MEDIUM
10th CBSE
IMPORTANT
In the following table, six elements and of the modern periodic table with atomic numbers to are given :
What would be the nature of oxide formed by ?

HARD
10th CBSE
IMPORTANT
An element '' has mass number and number of neutrons . Write the electronic configuration of '' also. Also, write the group number, period number and valency of .

HARD
10th CBSE
IMPORTANT
Answer the following with reason:
Which element is more metallic: or ?

HARD
10th CBSE
IMPORTANT
Answer the following with reason:
Which element has smaller size: or ?

MEDIUM
10th CBSE
IMPORTANT
What are Dobereiner's Triads? Explain giving one example.

HARD
10th CBSE
IMPORTANT
Arrange the elements of group according to increasing order of non-metallic character.

HARD
10th CBSE
IMPORTANT
Arrange the elements of group according to decreasing order of electronegativity.

HARD
10th CBSE
IMPORTANT
Group elements form negative ions. Why?
