CurlyKid04 CurlyKid04

10-10-2017
Chemistry

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What is the mass number of an isotope of this atom that has 2 neutrons?

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Malehazaman Malehazaman

22-10-2017

From left to right, the isotopes are protium (1H) with zero neutrons, deuterium (2H) with one neutron, and tritium (3H) with two neutrons.

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