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SIZIF [17.4K]
3 years ago
6

. What is the mass number of the isotope lithium-7?

Physics
2 answers:
Alex17521 [72]3 years ago
7 0

Answer:

7

Explanation:

isotopes are named after there mass number. because there mass number is different and protons no is same

lana66690 [7]3 years ago
4 0

Answer:

7

Explanation:

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