What is the mass number of the hydrogen isotope that contains 2 neutrons?
A)1
B)2
C)3
D)4
E)none of the above

Name: What is the mass number of the hydrogen isotope that contains 2 neutrons? A)1 B)2 C)3 D)4 E)none of the above
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Quizplus · Accepted Answer

The mass number of an isotope is the sum of its protons and neutrons. Hydrogen has 1 proton, and if the isotope contains 2 neutrons, the total mass number is 1 + 2 = 3.

What Is the Mass Number of the Hydrogen Isotope That