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
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
-
1 Answer
-
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.
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