Hydrogen exists as three isotopes.These isotopes differ by the number of ________ contained in the atom.
A)neutrons
B)protons
C)electrons
D)charges
E)particles

Name: Hydrogen exists as three isotopes.These isotopes differ by the number of ________ contained in the atom. A)neutrons B)protons C)electrons D)charges E)particles
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Question

Quizplus · Accepted Answer

Isotopes have the same number of protons, but differ in the number of neutrons they contain, leading to a difference in atomic mass. Therefore, the correct choice is neutrons.

Hydrogen Exists as Three Isotopes