MEDIUM
10th ICSE
IMPORTANT
Earn 100

The atomic radii of the elements of the second period are given below:

Second period elements B Be O N LI F C
Atomic radii (pm) 88 111 66 74 152 64 77

Arrange these elements in decreasing order of their atomic radii.

 

Important Questions on Periodic Classification of Elements

MEDIUM
10th ICSE
IMPORTANT

The atomic radii of the elements of the second period are given below:

Second period elements B Be O N Li F C
Atomic radii (pm) 88 111 66 74 152 64 77

Are the elements now arranged in the pattern of a period in the periodic table?

MEDIUM
10th ICSE
IMPORTANT

The atomic radii of the elements of the second period are given below:

Second period elements B Be O N Li  F C
Atomic radii (pm) 88 111 66 74 152 64 77

Name the element which has the (a) largest and (b) the smallest atomic number.

MEDIUM
10th ICSE
IMPORTANT

The atomic radii of the elements of the second period are given below:

Second period elements B Be O N Li F C
Atomic radii (pm) 88 111 66 74 152 64 77

From the above data, infer how the atomic size or atomic radius of the elements change as we go from left to right in a period.

 

MEDIUM
10th ICSE
IMPORTANT

The atomic radii of the elements of the second period are given below:

Second period elements B Be O N Li F C
Atomic radii (pm) 88 111 66 74 152 64 77

Name one metal, one nonmetal, and a metalloid out of these elements.

MEDIUM
10th ICSE
IMPORTANT

The atomic radii of the elements of the second period are given below:

Second period elements B Be O N Li F C
Atomic radii (pm) 88 111 66 74 152 64 77

Why does atomic radius decrease as we move from left to right in a period?

 

MEDIUM
10th ICSE
IMPORTANT

Observe the following part of the Periodic Table and answer the question.

Question Image

Which is the most reactive metal?

 

MEDIUM
10th ICSE
IMPORTANT

Observe the following part of the Periodic Table and answer the question.

Question Image

Which is the most reactive nonmetal?

EASY
10th ICSE
IMPORTANT

Observe the following part of the Periodic Table and answer the question.

Question Image

Name the family of A, B, C, and D.