Multiple Choice
Which subatomic particle determines the identity of an element (i.e., its atomic number)?
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4. Atoms and Elements
Subatomic Particles (Simplified)
Multiple Choice
Which neutral atom has 6 electrons?
A
Carbon (C)
B
Oxygen (O)
C
Boron (B)
D
Nitrogen (N)
Verified step by step guidance1
Recall that a neutral atom has an equal number of protons and electrons.
Identify the atomic number of each element, which equals the number of protons (and electrons in a neutral atom): Carbon (6), Oxygen (8), Boron (5), Nitrogen (7).
Compare the atomic numbers to the number of electrons asked for in the problem (6 electrons).
Determine which element's atomic number matches 6, indicating it has 6 electrons in its neutral state.
Conclude that the element with 6 electrons is the one with atomic number 6, which is Carbon (C).
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