Answer
Symbol:(i)$B_{5}^{11}$ (ii) $Fe_{26}^{54}(2+)$ (iii) $P_{15}^{31}(3-)$ (iv)$Au_{79}^{196}$ (v)$Rn_{86}^{222}$
protons:(i)5 (ii)26 (iii)15 (iv)79 (v)86
Neutrons: (i)6 (ii)28 (iii)16 (iv)117 (v)136
Electrons: (i)5 (ii)24 (iii)18 (iv)79 (v)86
net charge: (i)0 (ii)+2 (iii)-3 (iv)0 (v)0
Work Step by Step
Symbol:(i)$B_{5}^{11}$ (ii) $Fe_{26}^{54}(2+)$ (iii) $P_{15}^{31}(3-)$ (iv)$Au_{79}^{196}$ (v)$Rn_{86}^{222}$
protons:(i)5 (ii)26 (iii)15 (iv)79 (v)86
Neutrons: (i)6 (ii)28 (iii)16 (iv)117 (v)136
Electrons: (i)5 (ii)24 (iii)18 (iv)79 (v)86
net charge: (i)0 (ii)+2 (iii)-3 (iv)0 (v)0