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Ahat [919]
3 years ago
7

What is the mass number of aneon isotope that has 9neutrons? *​

Physics
1 answer:
Luda [366]3 years ago
7 0

Neon is element #10, so every neon atom has 10 protons in the nucleus.

If it also has 9 neutrons in there, then its mass number is (10 + 9) = <em>19</em> .

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