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4 Cards in this Set
- Front
- Back
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What is an isotope? |
Isotopes are atoms with the same number of protons but they have a different number of neutrons. |
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What is the mass number of an atom? |
The mass number of an atom is the sum of the number of protons and neutrons in the nucleus. |
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If hydrogen had the atomic number of one and the mass number of one how many protons and neutrons does it have? |
The hydrogen atom would have one proton and and no neutrons if it had the atomic and mass number of 1 |
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If hydrogen had the mass number of 2 and the atomic number of 1. How many protons and neutrons would it have? |
The atom would have one Proton and one neutron. |
