Multiple Choice
How many valence electrons are present in an atom of chlorine (Cl)?
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 does fluorine (F) have?
A
8
B
5
C
6
D
7
Verified step by step guidance1
Identify the group number of fluorine in the periodic table. Fluorine is located in Group 17 (also known as Group VIIA).
Understand that the group number for main-group elements (Groups 1, 2, and 13-18) corresponds to the number of valence electrons.
Since fluorine is in Group 17, it has 7 valence electrons.
Valence electrons are the electrons in the outermost shell of an atom and are important for determining how an element reacts chemically.
Therefore, fluorine has 7 valence electrons, which is why it is highly reactive and tends to form a -1 charge by gaining one electron to achieve a stable octet configuration.
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