객관식
How many silicon atoms are present in one molecule of SiH_4?
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- 1. Intro to General Chemistry3h 57m
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2. Atoms & Elements
The Atom
객관식
What is the net charge of the nucleus of an atom?
A
Neutral, because protons and neutrons cancel each other's charges
B
Positive, due to the presence of protons
C
Zero, because electrons balance the charge of the nucleus
D
Negative, due to the presence of neutrons
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검증된 단계별 안내1
Recall that the nucleus of an atom contains protons and neutrons, while electrons orbit outside the nucleus.
Understand that protons carry a positive charge (+1 each), neutrons have no charge (neutral), and electrons carry a negative charge (-1 each).
Since neutrons are neutral, they do not contribute to the net charge of the nucleus.
Electrons are outside the nucleus, so their negative charge does not affect the charge of the nucleus itself.
Therefore, the net charge of the nucleus is determined solely by the number of protons, making it positive.
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