Write the electronic configuration, number of valence electrons and classify the following as metals, non-metals and inert gases.
(i) `""_(12)^(24)P`
(ii) `""_(19)^(39)Q`
(iii) `""_(7)^(14)R`
(iv) `""_(18)^(40)S`
(v) `""_(8)^(14)T`

Explanation

To solve the question, we will determine the electronic configuration, the number of valence electrons, and classify each element as a metal, non-metal, or inert gas.

### Step-by-step Solution:

1. **Identify the Atomic Number**:
- For each element, we note the atomic number from the notation provided.
- (i) P: Atomic number = 12
- (ii) Q: Atomic number = 19
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