Identify the electronic configuration of carbon atom from the given options.

1 s^{2}

2 s^{2}

2 p^{2}

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1 s^{2}

2 s^{1}

2 p^{3}

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1 s^{2}

2 s^{2}

3 p^{2}

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1 s^{2}

2 s^{2}

3 p^{3}

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Solution

The correct option is A $1 s^{2}$ $2 s^{2}$ $2 p^{2}$
When electrons are added to the subshells of the atoms, they are filled in the order from subshells of lower energy to the higher energy.Hence, the electronic configuration of carbon is $1 s^{2}$ $2 s^{2}$ $2 p^{2}$ .

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