Advanced Placement (AP), 20.11.2020 06:00 nikoidurrant
For example, carbon-14 is a radioactive isotope of carbon that has six protons and eight neutrons in its nucleus. We call it carbon-14 because the total number of protons and neutrons in the nucleus, also known as the mass number, adds up to 14 (6+8=14).
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For example, carbon-14 is a radioactive isotope of carbon that has six protons and eight neutrons in...
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