Multiple Choice
How many electrons are in a neutral sodium atom (Na)?
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9. Electrons in Atoms and the Periodic Table
Electronic Structure: Number of Electrons
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many electrons are in a neutral oxygen atom?
A
6
B
16
C
8
D
10
Verified step by step guidance1
Recall that a neutral atom has an equal number of protons and electrons.
Identify the atomic number of oxygen, which represents the number of protons in the nucleus. For oxygen, the atomic number is 8.
Since the atom is neutral, the number of electrons must be equal to the number of protons to balance the charge.
Therefore, the number of electrons in a neutral oxygen atom is equal to its atomic number, which is 8.
Verify that the other numbers given (6, 16, 10) do not correspond to the atomic number of oxygen, confirming that 8 is the correct number of electrons.
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