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one isotope of chromium (atomic number 24) has an atomic mass of 53 amu. how many neutrons are in this particular isotope of chromium?

A. 24
B. 29
C. 53
D. 77

I say A
12 years ago

Answers

DrBob222
#protons + #neutrons = mass #.
I don't agree with A as the answer.
12 years ago
DrBob222
Look at the equation I gave you. # protons is the atomic number. That's 24. Mass # in the problem is 53.
# neutrons = 53-24 = ?
12 years ago
drew
got it now B
12 years ago

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