Question

Each proton has a charge of +1
Each eleclron
[
-1
]
" ne utron
total charge=
[
148
]
[
begin{array}{c}
=17 times 1+18 times 0+18 times 0
=17-15=-1
end{array}
]

# 19 (3) 36 An atom contains 17 proton, 18 neutron and 18 electrons then it has charge - 122-2 11

Solution