4 years ago

What does the number next to isotopes signify?

Chemistry

2 answers:

elixir [45]4 years ago

3 0

It is an approximation of its mass number. Each isotope of an element has a different mass number.

erma4kov [3.2K]4 years ago

3 0

<span>The number next to the isotope is the mass number- They all have different masses because they have different numbers of neutrons, but the same amount of protons (Remember protons + neutrons = mass)</span>

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