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Lina20 [59]
3 years ago
6

Please help, i have my test today

Chemistry
1 answer:
Mariana [72]3 years ago
6 0

Answer:

carbon atoms with the usual 6 neutrons have a mass number of 12 (6 protons + 6 neutrons = 12), so they are called carbon-12. Carbon atoms with 7 neutrons have an atomic mass of 13 (6 protons + 7 neutrons = 13). These atoms are the isotope called carbon-13.

an atom of carbon with six neutrons, carbon-12, has an atomic mass of 12 amu.

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hope that's right and hope i helped




6 0
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