Tolong jawab yaa terimakasih

Elektron = e
neutron = n
proton = p

a.) e = 19
p = 19
n = 40- 19 = 21

b.) e = 26
p = 26
n = 56 – 26 = 30

c. ) e = 47
p = 47
n= 108 – 47 = 61

d.) e = 50
p = 50
n= 118 – 50 = 68

e.) e = 56
p = 56
n = 137 – 56 = 81

f.) e = 92
p = 92
n = 235 – 92 = 143

g.) e = 91
p = 91
n = 231 – 91 = 140

h .) e = 86
p = 86
n = 222 – 86 = 136

i.) e = 83
p = 83
n = 209-83 = 126

j.) e = 80
p = 80
n = 200-80 = 120