Write the law of conservation of charge. Give one example.

(N/A) The law of conservation of charge states that the total electric charge of an isolated system remains constant over time.
This means that charge can neither be created nor destroyed,only transferred from one body to another.
Example: In the process of beta decay,a neutron decays into a proton and an electron.
Equation: $0n^1 \rightarrow {}_{1}p^1 + {}_{-1}e^0$
Before the decay,the net charge is $0$. After the decay,the net charge is $(+1) + (-1) = 0$. Thus,the total charge is conserved.