Question Detail

CHM 102 Electronic Theory in Organic Chemistry Objective Question
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Question

How many valence electrons does chlorine (atomic number 17) have?
Options
A 5
B 6
C 7
Correct Answer
D 8
Correct Answer

Option C is the correct answer.

Detailed Explanation

Chlorine's configuration is 1s² 2s² 2p⁶ 3s² 3p⁵. Valence electrons are in the n=3 shell: 3s² 3p⁵ → 7 valence electrons (Group 17).

Hint

Halogen group.

Question Info

Course: CHM 102
Topic: Electronic Theory in Organic Chemistry
Type: Objective
Difficulty: Not specified
Question 707 of 1999
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