Multiple Choice
How many valence electrons does a sulfur atom have?
3
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many valence electrons are shown in the Lewis structure for a chlorine atom?
A
6
B
7
C
8
D
5
Verified step by step guidance1
Recall that valence electrons are the electrons in the outermost shell of an atom that participate in bonding and chemical reactions.
Determine the group number of chlorine in the periodic table. Chlorine is in Group 17 (or VIIA), which means it has 7 valence electrons.
Understand that the Lewis structure for a chlorine atom represents these valence electrons as dots around the chemical symbol 'Cl'.
Draw the Lewis structure by placing 7 dots around the symbol 'Cl', typically arranged as three pairs and one single dot to represent the 7 valence electrons.
Count the dots in the Lewis structure to confirm that there are 7 valence electrons shown for the chlorine atom.
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