Question

What is the number at the end of an isotope’s name?

Answer 1

Answer:

Atomic number, atomic mass, and relative atomic mass

Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the atomic number.

Answer 2

Answer:

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Explanation:

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