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# If 12 and 9 are the atomic numbers of elements P and Q respectively, the inter-a...

### Question

If 12 and 9 are the atomic numbers of elements P and Q respectively, the inter-atomic bond between these elements is ...

A) co-ordinate

B) neutral

C) covalent

D) ionic

### Explanation:

Atomic number P = 12, Q = 9. In a neutral atom, the number of protons (Atomic number) equals the number of electrons, thus the electronic configuration of P and may be denoted as:
P = 2, 8, 2
Q = 2, 7

## Dicussion (1)

• Atomic number P = 12, Q = 9. In a neutral atom, the number of protons (Atomic number) equals the number of electrons, thus the electronic configuration of P and may be denoted as:
P = 2, 8, 2
Q = 2, 7