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The electronic configuration of an eleme...

The electronic configuration of an element is `1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^3` . What is the atomic number of the element which is just below the given element in the periodic table?

A

33

B

34

C

31

D

49

Text Solution

Verified by Experts

The correct Answer is:
A
`1s^(2) 2s^(2) 2p^(6) 3s^(2) 2p^(3)` has atomic no. =15 element below it has atomic no 15+18=33
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