Chemistry, asked by Aadhuaayu, 7 months ago

why is the mass number of lithium 7 . we know that mass number is the sum of protons and neutrons . lithium has 3 protons and neutrons and has 4 neutrons . but how come the mass number is 7.
pls do ans quickly

Answers

Answered by harpreetchahal7

3

Answer:

add 3+4

Explanation:

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Answered by shaludevi692

0

Answer:

just

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