Question

Which of the following is a reasonable ground-state electron configuration?

A) 1s21p62d2

B) 1s22s42p6

C) 1s22s22p5

D) 1s22s22d6

Answer 1

opt 2 may be the right answer

Answer 2

The  1s22s22p5 is the following is a reasonable ground-state electron configuration. so, option (c)is correct.

• The electronic configuration is the arrangement of the electrons in the orbital shells.
• It is nothing but a sequence the protons, electrons and neutrons, focusing on the electronic structure.
• Each atom has a sub-shell, and it can able to arrange the electrons easily to follow in the orbitals.
• The electrons are to be distributed in the various orbitals equally according to the atomic-electronic
• orbitals.
• Electron configuration 1s²1p⁶2d² is not reasonable because 1p and 2d orbitals do not exist.
• Electron configuration 1s²2s⁴2p⁶, this is not reasonable because s orbitals only contain 2 electrons.
• Electron configuration 1s²2s²2p⁵ is of an element fluorine. Fluorine (F) has atomic number 9, which means it has 9 protons and 9 electrons.
• Electron configuration 1s²2s²2d⁶ is not reasonable because 2d orbitals do not exist.

Therefore, the  1s22s22p5 is the following is a reasonable ground-state electron configuration. (c).

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