6329Cu+?? 6330Zn+210n
Solution
Answer : 2
1 H
The nuclear reaction can be written as:
63
29 Cu + A
Z X -------> 63
30 Zn + 2 1
0 n
Here, A, Z and X are atomic number, mass number and symbol of element X respectively.
Now balance subscript part (lower part) of equation
29 + Z = 30+2(0) => Z= 1
Z = 1 is for H in periodic table, thus X= H
Now balance superscript (upper part of equation)
63 + A = 63 + 2(1) => A = 2
Unknown isotope is A
Z X = 2
1 H
Final balace equation is
63
29 Cu + 2
1 H -------> 63
30 Zn + 2 1
0 n