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except for hydrogen-1, the mass number of an isotope is always greater than its atomic number. Is the mass number reasonable?__________

2007-05-14 16:11:45 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

I would say yes. Differences in mass number but with the same atom number aid the identity of isotopes, atoms with the same chemical characteristics other than the stability of the nucleus.

2007-05-14 16:19:05 · answer #1 · answered by Sulfol1 4 · 0⤊ 0⤋

Yes. The mass number is the sum of the protons and neutrons. Except for hydrogen-1, all nuclei have neutrons as well as protons.

2007-05-14 23:16:43 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋