Question Detail

CHM 101 Quantum Theory and Atomic Structure Objective Question
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Question

What is the electron configuration [Kr] 4d¹⁰ 5s² 5p⁶?
Options
A A representative element
B A transition element
C A noble gas
Correct Answer
D A halogen
Correct Answer

Option C is the correct answer.

Detailed Explanation

The configuration [Kr] 4d¹⁰ 5s² 5p⁶ has a full valence shell (5s² 5p⁶). This configuration (with 8 valence electrons) is characteristic of noble gases, which are the most stable and least reactive elements.

Hint

Full s and p subshells (ns² np⁶) indicate a noble gas configuration.

Question Info

Course: CHM 101
Topic: Quantum Theory and Atomic Structure
Type: Objective
Difficulty: Not specified
Question 1551 of 1872
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