객관식
How many valence electrons does an iron (Fe) atom have in its ground state?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
객관식
How many valence electrons does tin (Sn) have?
A
4
B
8
C
2
D
6
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검증된 단계별 안내1
Identify the group number of tin (Sn) in the periodic table. Tin is in group 14 (or IV), which helps determine its valence electrons.
Recall that elements in group 14 have 4 valence electrons because the group number corresponds to the number of valence electrons for main-group elements.
Understand that valence electrons are the electrons in the outermost shell of an atom that participate in chemical bonding.
Confirm that tin, being a main-group element in group 14, has 4 valence electrons.
Therefore, the number of valence electrons for tin (Sn) is 4.
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