Multiple Choice
In the context of small molecules and atomic structure, which particles are found in the nucleus of an atom?
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2. Chemical Components of Cells
Small Molecules
Multiple Choice
In the context of small molecules and atomic structure, what is the net electric charge of an atom's nucleus?
A
Positive, because it contains protons (and neutrons, which are neutral)
B
Negative, because it contains electrons
C
It can be positive or negative depending on the atom’s isotope
D
Neutral, because protons and neutrons cancel each other’s charge
Verified step by step guidance1
Recall the basic structure of an atom: it consists of a nucleus at the center and electrons orbiting around it.
Understand that the nucleus contains protons and neutrons. Protons carry a positive electric charge, while neutrons are electrically neutral (no charge).
Recognize that electrons, which carry a negative charge, are located outside the nucleus and do not affect the nucleus's net charge.
Since neutrons have no charge, they do not contribute to the net electric charge of the nucleus; only protons contribute to the charge.
Therefore, the net electric charge of an atom's nucleus is positive, determined solely by the number of protons it contains.
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