Which of the following element has a total of three shells, with four electrons in its valence shell?

Carbon

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Silicon

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Phosphorus

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Sulphur

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Solution

The correct option is B Silicon
According to the given data,
Electronic Configuration of the element is 2, 8, 4 . There are four electrons in its valence shell. So it belongs to fourteenth group. In the given options carbon and silcon belongs to fourteenth group. Since given element has fourteen electrons the element is silicon.

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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?

5

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