Multiple Choice
Which method can be used to determine the number of valence electrons in an atom of a representative element?
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- 1. Intro to General Chemistry3h 46m
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- Magnetic Properties of Complex Ions: Octahedral Complexes11m
10. Periodic Properties of the Elements
Valence Electrons of Elements
Multiple Choice
How many valence electrons does a hydrogen atom have?
A
0
B
2
C
8
D
1
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Verified step by step guidance1
Recall that valence electrons are the electrons in the outermost shell of an atom that participate in chemical bonding.
Identify the electron configuration of a hydrogen atom, which has only one electron.
Since hydrogen's only electron is in the first shell (1s orbital), this electron is also its valence electron.
Recognize that the first shell can hold up to 2 electrons, but hydrogen only has 1 electron in that shell.
Therefore, the number of valence electrons in a hydrogen atom is 1.
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