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14-06-2022
Chemistry

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Question 3 of 25
What is the correct electron configuration for an element with 5 electrons in
the third energy level?
A. 1s22s22p63s¹3p³3d¹
B. 1s22s22p 3s23p³
C. 1s22s22p63s23p5

Respuesta :

CrystalQueen CrystalQueen

14-06-2022

Answer:

B.) 1s²2s²2p⁶3s²3p³

Explanation:

The highest energy orbital that elements in the third period occupy is either 3s or 3p. Because there are 5 electrons, the 3s orbital is completely filled (with 2 electrons) and the 3p orbital is half-filled (with 3 electrons).

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