Atom and chemical equation

• The nucleus is made up of protons, neutrons, and electrons.
• Protons have a positive charge
• Neutrons are neutral particles with no charge
• Electrons have a negative charge
• Atomic mass = top number
• Atomic number = bottom number
• Atomic number = bottom number
• Proton and electron are the same

  Example - carbon 12 top and 6 bottom

  Proton =6

  Electron =6

  Neutrons= top-bottom =6
• Example

  Word equation - magnesium + oxygen ➡️ magnesium oxide
• Left side reactants

  Right side product