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jeyben [28]
3 years ago
11

An isotope of iron has 28 neutrons. If the atomic mass of the isotope is 54, how many protons does it have?

Chemistry
2 answers:
Crazy boy [7]3 years ago
5 0
26 because you need to do 54-28=26
The atomic mass number is the number of protons AND neutrons together.
elena-14-01-66 [18.8K]3 years ago
4 0
An isotope is a varying in the neutrons because the protons NEVERRRR change!!

54 - 28 = <span>26 
</span>
Answer: 26


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