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Which of the following best describes the overall charge of an atom's nucleus?
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- 1. Intro to General Chemistry4h 5m
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2. Atoms & Elements
The Atom
Scelta multipla
How many total electrons does a neutral lithium atom have?
A
7
B
3
C
1
D
5
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Guida verificata passo dopo passo1
Recall that a neutral atom has an equal number of protons and electrons.
Identify the atomic number of lithium, which represents the number of protons in the nucleus of a lithium atom.
Look up the atomic number of lithium on the periodic table; lithium has an atomic number of 3.
Since the atom is neutral, the number of electrons equals the number of protons, so lithium has 3 electrons.
Therefore, the total number of electrons in a neutral lithium atom is 3.
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