Multiple Choice
How many valence electrons does a fluorine atom (F) have?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
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How many valence electrons does each member of the boron family (Group 13) have?
A
3
B
4
C
2
D
5
Verified step by step guidance1
Identify the group number of the boron family in the periodic table. The boron family is also known as Group 13.
Recall that the group number for main group elements corresponds to the number of valence electrons for those elements. For Group 13, the group number is 13.
Since the group number is 13, the number of valence electrons is found by taking the last digit of the group number, which is 3.
Therefore, each member of the boron family has 3 valence electrons.
This explains why the correct answer is 3, as valence electrons determine the chemical properties and bonding behavior of elements in this group.
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