Asked by greeny

which pair of atoms represent nuclei that have the same number of neutrons?
a Co36 and Co 58
b. Mn57 and Fe 57
c. Ni 58 and Fe 57
d. Ni 58 and Co 57
e. Ni 59 and Fe 56

Answers

Answered by DrBob222
#protons + #neutrons = mass number.
Example:
Fe56 is
protons = 26
mass number = 56
26 + ? = 56
? = number neutrons = 56-26 = 30
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