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Which of the following is the electron configuration for an electrically neutral atom of beryllium(Be)?

1s^2 2s^2


1s2^2s2^2p^6


1s^22s^22p^4


1s^22s^22p^44d^2

Verified Answer :

syed514

1s^2 2s^2 is the electron configuration for an electrically neutral atom of beryllium(Be).

Answer: The correct answer is \(1s^22s^2\)

Explanation:

Beryllium is the 4th element of the periodic table having 4 electrons around the nucleus of the atom.

This element belongs to Group 2 and period 2 of the periodic table.

The electronic configuration of electrically neutral beryllium atom is \(1s^22s^2\)

This atom has 2 valence electrons.

Hence, the correct answer is \(1s^22s^2\)

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