Name the element with the following electrons configuartions
(i) ` 1s^2 2s^2 2p^6 3s^2 3p^1`
(ii ) ` 1s^2 2s^2 2p^6 3s^2 3p^2`
(iii)`1s^2 ""2s^2 ""2p^6 3s^2 3p ^6 3d ^5 4s^1`

Explanation

To determine the elements corresponding to the given electron configurations, we will follow these steps:

### Step 1: Count the Total Number of Electrons
The total number of electrons in an atom is equal to the sum of the superscripts in the electron configuration. This number also represents the atomic number of the element.

### Step 2: Identify the Element Using the Atomic Number
Once we have the atomic number, we can refer to the periodic table to find the corresponding element.

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