- #1
kingbryant
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Homework Statement
state the number of protons electrons and neutrons of these:
Magnesium-25
Cu-65
Homework Equations
protons is the same as atomic numbber, same with electrons. NEUTrons is atomic number - atomic mass
The Attempt at a Solution
Magnesium-25 Cu-65
p- 12 p-29
e-12 e-29
n 25-12=13 n-65-29=36
am i right?