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3 years ago

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An isotope of yttrium has 39 protons and 59 neutrons. what is the atomic mass of that isotope?

1 answer:

Charra [1.4K]3 years ago

8 0

We can define atomic mass the total of number of protons and number of neutrons in an atom or isotope.
<span>So when an isotope of yttrium has 39 protons and 59 neutrons, its atomic mass is equal to;
number of protons + number of neutrons = 39 + 59 = 98</span>

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