Which of the following element has twice as many electrons in its second shell as it has in its first shell?

Carbon

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Nitrogen

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Oxygen

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Sulphur

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Solution

The correct option is A
Carbon

Carbon has twice as many electrons in its second shell as in its first shell.

Atomic Number of Carbon - 6

Electronic Configuration - $1 s^{2} 2 s^{2} 2 p^{2}$ .
It has 2 electrons in its 1st shell(1s) and in the second shell(2s,2p) it has 4 electrones.

Suggest Corrections

Similar questions

Which element has

(a) two shells, both of which are completely filled with electrons?

(b) the electronic configuration 2, 8, 2?

(d) a total of two shells, with three electrons in its valence shell?

(e) twice as many electrons in its second shell as in its first shell?

3^{r d}

5

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