Name the element with the following electronic configurations .
(a) `1s^(2)2s^(2) 2p^(6) 3s^(2) 3p^(1)`
(b) `1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 4s^(1)`

Explanation

To determine the elements corresponding to the given electronic configurations, we need to follow these steps:

### Step-by-Step Solution:

#### (a) Electronic Configuration: `1s² 2s² 2p⁶ 3s² 3p¹`

1. **Count the Total Number of Electrons**:
- 1s² contributes 2 electrons
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