The charge on a proton - +1, The charge on an electron - -1, The charge on a neutron - 0, The mass of protons and neutrons - 1, The mass of electrons - 1/2000 (tiny), Ionic bonding - The bonding between metals and non metals, Covalent bonding - Bonding through shared electron pairs, Kinetic energy - The energy stored in a moving object, Gravitational potential energy - The energy stored in an object off the Earth's surface, Mass - The amount of matter in a material. Measured in Kg or g,

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