what is the number of neutrons in the nucleus of atom 3Li7?

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2007-01-08 07:43:07 · 2 answers · asked by frickenawesomekoreanandyouknowit 2 in Science & Mathematics ➔ Chemistry

3 is the atomic number and 7 is the mass number, so 7-3=4 neutrons.

2007-01-08 07:47:40 · answer #1 · answered by hcbiochem 7 · 0⤊ 0⤋

4 (Assuming there IS, in fact, a Li7 isotope. What IS the usual weight of Lithium? 6? 7? 8? 9?)

2007-01-08 15:48:03 · answer #2 · answered by Carol L 1 · 0⤊ 0⤋