Multiple Choice
Which of the following particles are found in the nucleus of an atom?
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2. Atoms & Elements
The Atom
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Which of the following relationships is true for an uncharged atom?
A
The number of neutrons equals the number of electrons.
B
The number of protons equals the number of electrons.
C
The number of electrons is greater than the number of protons.
D
The number of protons equals the number of neutrons.
Verified step by step guidance1
Recall that an uncharged atom has no overall electric charge, meaning the total positive charge must balance the total negative charge.
Understand that protons carry a positive charge, and electrons carry a negative charge, while neutrons are neutral and do not affect the charge balance.
Since the atom is uncharged, the number of protons (positive charges) must be equal to the number of electrons (negative charges) to balance the charges.
Note that the number of neutrons can vary independently and does not have to equal the number of protons or electrons; it affects the isotope but not the charge.
Therefore, the true relationship for an uncharged atom is that the number of protons equals the number of electrons.
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