<aside> 💡 DEFINITIONS

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Element

• Substance cannot be broken down further
• consisting of atoms with the same atomic number only

Compound

• Substance with 2 or more atoms of different elements, chemically bonded together

Mixture

• Different substances that are not chemically bonded together
• Can be separated by physical methods

<aside> 💡 PROTONS, NEUTRONS & ELECTRONS

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Number Of Protons = Proton Number/Atomic Number

Nucleon Number/Mass Number = Proton + Neutron

Electron Number = Proton Number [In atoms]