Recent content by reemie

Because the mass number is the sum of protons and neutrons, correct? Edit: I realized that hydrogen doesn't have any neutrons, so we should only consider the protons. But that still gives the wrong answer. And when I subtract the number of protons from the answer, I get 9x10-28, and I can't...

The answer according to my booklet is 1.6734×10-24 (g), but I don't understand how we got this answer. proton: 1.6725×10-24 neutron: 1.6748×10-24 electron: 0.0009×10-24 To get the mass, I added protons with neutrons, but I got 3.3473×10-24. What am I doing wrong?