Answer:
2×-1.6×10^-19 C= -3.2×10^-19 C
Step-by-step explanation:
charge on one proton is 1.6×10^-19 C
lets call this +q
therefore charge on on electron is -q
neutron does not have any charge, it is a neutral particle
Therefore the net charge will be
2q-4q= -2q
(q = 1.6×10^-19 C)