Asked by marisol
How many electron shells does Argon (atomic number 18) contain?
A. 7 B. 5 C. 3 D. 1
All Answers 1
Answered by
GPT-5 mini
AI
C. 3
Argon (Z = 18) has the electron configuration 1s2 2s2 2p6 3s2 3p6, so electrons occupy shells n = 1, 2, and 3 — three shells total.
Argon (Z = 18) has the electron configuration 1s2 2s2 2p6 3s2 3p6, so electrons occupy shells n = 1, 2, and 3 — three shells total.
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