Multiple Choice
How many valence electrons are in an atom of carbon (C)?
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9. Electrons in Atoms and the Periodic Table
Valence Electrons of Elements (Simplified)
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How many valence electrons does sulfur (S) have?
A
6
B
2
C
12
D
8
Verified step by step guidance1
Identify the element sulfur (S) on the periodic table. Sulfur is in period 3 and group 16 (or VIA) of the periodic table.
Recall that the group number for main-group elements indicates the number of valence electrons. For groups 13-18, the valence electrons are the group number minus 10.
Since sulfur is in group 16, calculate the valence electrons as 16 - 10 = 6.
Alternatively, write the electron configuration of sulfur: \$1s^2 2s^2 2p^6 3s^2 3p^4$. The electrons in the outermost shell (n=3) are the valence electrons.
Count the electrons in the 3s and 3p orbitals: \$3s^2\( and \)3p^4$ add up to 6 valence electrons.
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