Proton - Positive subatomic particle in nucleus with a mass of 1, Electron - Negative subatomic particle outside nucleus with a mass of 0, Neutron - Subatomic particle with no charge in the nucleus with a mass of 1, Atomic Number - Equal to the protons and electrons, Atomic Mass - Protons plus neutrons, Element Symbol - One or two letters in the center of the element square, Nucleus - Center of the atom, holds protons and neutrons, Electron Cloud - The space outside the nucleus,

Atomic Structure Review

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