3
AssignmentMultiple Choice

Periodic Table

Question 3 • GA-GSE Physical Science A

Argon (Ar): [Ne]3s23p6

Answer
A
longhand notation
B
noble-gas notation

Explanation

The notation [Ne]3s²3p⁶ uses the symbol of the previous noble gas, neon, to stand for argon’s inner electrons. That makes it noble-gas notation; longhand notation would list every occupied subshell without the bracketed abbreviation.

AI-written and checked against the verified answer.

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