Which of the following elements has a total of three shells, with four electrons in its outermost 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
The atomic number of silicon is 14 and its electronic configuration is (2, 8, 4). Therefore, silicon has a total of three shells, with four electrons in its outermost shell.

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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?

Name

(a) three elements that have a single electron in their outermost shells.

(b) two elements that have two electrons in their outermost shells.

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