Atomic structure

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The Atomic number is the number of protons

Electrons orbit the nucleus

The mass number is amount of protons and neutrons

The charge in a proton is positive, and the relative mass is 1

The charge in a electron is negative and the relative mass is 0

The charge in a neutron is neutral and the relative mass is 1

The amount of protons and electrons are always the same

The amount of neutrons is the mass number minus the amount of protons

An isotope has the same amount of protons and electrons but a different amount of nuetrons