Complete the following `:`
i.` ._(7)N^(14)+._(2)He^(4)rarr ._(8)O^(17)+……….`
`ii. ` `._(92)U^(235)+._(0)n^(1) rarr ._(55)A^(142)+._(37)B^(92)+……….`
`iii.` `._(29)Cu^(53)rarr ._(28)Ni^(53)+………………`
`iv.` `2 ._(1)H^(3)rarr._(2)He^(4)+.....`
`v.` `._(96)Cm^(246)+._(6)C^(12)rarr ._(102)No^(254)+...........`
`vi.` `._(94)Pu^(239)+.......rarr._(96)Cm^(242)+._(0)n^(1)`
`vii. ` `._(34)Se^(82)rarr ............ +2 ._(-1)e^(0)`

Explanation

`i.` `._(7)N^(14)+._(2)He^(4)rarr ._(8)O^(17)`+........
or `._(7)N^(14)+._(2)He^(4)rarr._(8)O^(17)+._(Z)X^(m)`
Equating mass number on both sides
`14+4=17+mimpliesm=-1`
Equating atomic number on both sides,
`7+2=8+ZimpliesZ=-1`
`:. X` is `._(1)X^(1) ,i.e., ._(1)H^(1)` .
or `._(7)N^(14)+._(2)He^(4) rarr ._(8)O^(17)+._(1)H^(1)`
`ii.` `._(92)U^(235)+._(0)n^(1) rarr._(55)A^(142)+._(37)B^(92)+.....`
Equation is `._(92)U^(235)+._(0)n^(1)rarr``_(55)Cs^(142)+._(37)Rb_(92)+2._(0)n^(1)`
`iii.` `._(29)Cu^(53) rarr`._(28)Ni^(53)+._(Z)X^(m)`
Equating atomic number on both sides and mass number on both sides
`Z=0 ` `m=0`
`:. ` `._(29)Cu^(53) rarr ._(28)Ni^(53)+._(Z)X^(m)`
Equating atomic number on both sides and mass number on bot sides
`:. 2 ` `._(1)H^(3) rarr._(2)He^(4)+2 ._(0)n^(1)`
`v.` Equating atomic number and mass number on both sides
`._(96)Cm^(246)=._(6)C^(12)rarr ._(102)No^(254)+4._(0)n^(1)`
`vi.` Equating atomic number and mass number on both sides
`._(94)Pu^(239)+._(2)He^(4) rarr ._(96)Cm^(242)+._(0)n^(1)`
`vii.` Equating atomic number and mass number on both sides.
`._(34)Se^(82) rarr ._(36)Kr^(82)+2._(-1)n^(0)`