<aside> 💡 DEFINITIONS

</aside>

Element

• Substance that contains only 1 kind of atom

Compound

• Substance made of 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

</aside>

Number Of Protons = Proton Number/Atomic Number

Nucleon Number/Mass Number = Proton + Neutron

Electron Number = Proton Number [In atoms]