please solve this problem
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From the bellow reaction equation, the value of Z is 28.
27
60
Co→
Z
60
X+
−1
0
e
Z represents the atomic number of the element X.
The sum of the atomic numbers on left hand side of the equation is equal to the sum of the atomic numbers on right hand side of the equation.
27=Z+(−1)
Z=27+1=28
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answers is 28
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