Knowing the atomic number and the atomic mass number you can calculate what?

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Knowing the atomic number and the atomic mass number you can calculate what?

It's for a science project! needed ASAP people! ASAP!

2007-03-12 10:04:27 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

2 answers

The atomic number tells you the number of protons in the atom (and what the element is).

The atomic mass number tells you the isotope of the element.

The atomic mass number minus the atomic nember tells you the number of neutrons in the atom.

2007-03-16 08:21:56 · answer #1 · answered by Richard 7 · 9⤊ 0⤋

The number of protons and neutrons in the atom, and so you'll know which isotope it is. Carbon-14 vs. Carbon-12, for example.

2007-03-12 17:08:03 · answer #2 · answered by John T 6 · 0⤊ 0⤋