Multiple Choice
How many valence electrons do alkaline earth metals have?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
Multiple Choice
Which of the following elements has the fewest valence electrons available for bonding?
A
Carbon (C)
B
Oxygen (O)
C
Sodium (Na)
D
Neon (Ne)
Verified step by step guidance1
Identify the group number of each element in the periodic table, as the group number corresponds to the number of valence electrons for main-group elements.
Recall that Carbon (C) is in group 14, so it has 4 valence electrons.
Oxygen (O) is in group 16, so it has 6 valence electrons.
Sodium (Na) is in group 1, so it has 1 valence electron.
Neon (Ne) is in group 18, a noble gas with a full valence shell of 8 electrons, but it is generally inert and does not readily form bonds, meaning it effectively has zero valence electrons available for bonding.
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