Identify which of the following change when neutrons are added to an atom.Mass numberAtomic numberNet chargeThe atom's mass
Question
Identify which of the following change when neutrons are added to an atom.
- Mass number
- Atomic number
- Net charge
- The atom's mass
Solution
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Mass number: The mass number of an atom changes when neutrons are added because the mass number is the sum of protons and neutrons in the atom.
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Atomic number: The atomic number does not change when neutrons are added. The atomic number is the number of protons in an atom, and adding neutrons does not affect the number of protons.
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Net charge: The net charge of an atom does not change when neutrons are added. Neutrons are neutral particles and do not carry a charge, so they do not affect the overall charge of the atom.
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The atom's mass: The mass of an atom changes when neutrons are added because neutrons contribute to the overall mass of the atom.
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