The electronic configurations of three elements, A, B and C are given below. Answer the questions 14 to 17 on the basis of these configurations. A 1S2 2S2 2P6 B 1S2 2S2 2P6 3S2 3P3 C 1S2 2S2 2P6 3S2 3P5 table form of A may be represented by the formula : (i) A (ii) A2 (iii) A3 (iv) A4

This is a Multiple Choice Questions as classified in NCERT Exemplar Ans: Option (i) The electronic configuration of A 1S2 2S2 2P6 is having no unpaired electrons in the outer most shells. So, an atom having no unpaired electron in its valence shell is said to be stable.

The electronic configurations of three elements, A, B and C are given below. Answer the questions 14 to 17 on the basis of these configurations.

A

1S² 2S² 2P⁶

B

1S² 2S² 2P⁶3S² 3P³

C

1S² 2S² 2P⁶3S² 3P⁵

table form of A may be represented by the formula :

(i) A

(ii) A₂

(iii) A₃

(iv) A₄

48 Views|Posted 8 months ago

Asked by Shiksha User

1 Answer

Sort by:

Answered by

Vishal Baghel | Contributor-Level 10

8 months ago

This is a Multiple Choice Questions as classified in NCERT Exemplar

Ans: Option (i)

The electronic configuration of A 1S² 2S² 2P⁶ is having no unpaired electrons in the outer most shells. So, an atom having no unpaired electron in its valence shell is said to be stable.