Hydrogen has three isotopes with mass numbers of 1, 2, and 3 andhas an average atomic mass of 1.00794 amu. This information indicatesthat (1) equal numbers of each isotope are present (2) more isotopes have an atomic mass of 2 or 3 than of 1 (3) more isotopes have an atomic mass of 1 than of 2 or 3 (4) isotopes have only an atomic mass of 1

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Owen Barnes

Chemistry

19 February, 01:04

Hydrogen has three isotopes with mass numbers of 1, 2, and 3 andhas an average atomic mass of 1.00794 amu. This information indicatesthat (1) equal numbers of each isotope are present (2) more isotopes have an atomic mass of 2 or 3 than of 1 (3) more isotopes have an atomic mass of 1 than of 2 or 3 (4) isotopes have only an atomic mass of 1

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Troy Mccarthy · Answer 1

3 is correct. Since the average atomic mass is 1.00794 amu, which is pretty close to 1, it is safe to assume that most isotopes of hydrogen have an atomic mass of 1 amu.