Multiple Choice
Which element typically has 5 valence electrons (based on its group in the periodic table)?
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9. Electrons in Atoms and the Periodic Table
Valence Electrons of Elements (Simplified)
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Which element has 6 valence electrons in its outermost shell (as predicted by its group on the periodic table)?
A
Nitrogen (N)
B
Carbon (C)
C
Neon (Ne)
D
Oxygen (O)
Verified step by step guidance1
Understand that the number of valence electrons for main-group elements corresponds to their group number in the periodic table. For example, elements in Group 16 have 6 valence electrons.
Identify the group number of each element listed: Nitrogen (N) is in Group 15, Carbon (C) is in Group 14, Neon (Ne) is in Group 18, and Oxygen (O) is in Group 16.
Recall that valence electrons are the electrons in the outermost shell of an atom, which determine its chemical properties and bonding behavior.
Match the group number to the number of valence electrons: since Oxygen (O) is in Group 16, it has 6 valence electrons in its outermost shell.
Conclude that Oxygen (O) is the element with 6 valence electrons, as predicted by its group on the periodic table.
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