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Electronic Structure: Number of Electrons — How many electrons does a neutral atom of zinc (Zn) contain?
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9. Electrons in Atoms and the Periodic Table
Electronic Structure: Number of Electrons
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How many electrons are in a neutral atom of lithium (Li)?
A
4
B
3
C
2
D
6
Guida verificata passo dopo passo1
Recall that a neutral atom has an equal number of protons and electrons.
Identify the atomic number of lithium (Li) from the periodic table, which represents the number of protons in the nucleus.
For lithium, the atomic number is 3, meaning it has 3 protons.
Since the atom is neutral, the number of electrons must also be 3 to balance the positive charge of the protons.
Therefore, the number of electrons in a neutral lithium atom is equal to its atomic number, which is 3.
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