Element with electronic configuration $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2}$ is a _________.

metal

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non-metal

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metalloid

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inert gas

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Solution

The correct option is A metal
Configuration: ${1 s}^{2} {2 s}^{2} 2 p^{6} {3 s}^{2}$
Atomic number =12 (Magnesium)
The s block elements 1A and 2A are metals, $M g$ is a metal

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