The electronic configurations of three elements A, B and C are given below.
Answer the questions from 14 to 17 on the basis of these configurations.
A
B
C
Stable form of A may be represented by the formula
(i) A
(ii) A2
(iii) A3
(iv) A4
NEET Foundation 2022.
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The answer is the option (i) A
Explanation: The formula will be A only, as the octet of A is complete. It has an atomic number of 10.