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How many valence electrons does fluorine have?
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10. Periodic Properties of the Elements
Valence Electrons of Elements
Multiple Choice
How many valence electrons are present in a sulfur atom?
A
4
B
8
C
6
D
2
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검증된 단계별 안내1
Identify the element sulfur (S) and find its atomic number, which is 16. This tells us sulfur has 16 electrons in total.
Recall that valence electrons are the electrons in the outermost shell (energy level) of an atom that participate in chemical bonding.
Determine the electron configuration of sulfur: \$1s^2 2s^2 2p^6 3s^2 3p^4$.
Recognize that the outermost shell for sulfur is the third shell, which contains the \$3s^2\( and \)3p^4$ electrons.
Add the electrons in the outermost shell: \(2\) (from \$3s\() + \(4\) (from \)3p$) = \(6\) valence electrons.
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