The elementary charge
A proton carries , an electron carries , a neutron carries nothing. An atom has as many protons as electrons: its charge is zero.
8 min
Ions and their charge
Work out an ion's charge from its protons and electrons, and write an ionic formula that respects neutrality.
The essentials
2
An ion's charge
Members only
3
The notation
Members only
4
Electrical neutrality
Members only
5
Ion migration
Members only