An atom with 2 protons, 3 neutrons, and 4 electrons has a charge of

It has a charge of -2 because it has 2 more electrons than protons meaning it has a negative charge of 2 which is -2. Neutrons don't effect charge.

( +1 +1 -1 -1 -1 -1) = -2

Each proton has a charge of +1 and each electron has -1.

2(1) - 4(1) = -2

2×-1.6×10^-19 C= -3.2×10^-19 C

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)

what is the question here. i think you messed up.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.