Sodium element has 11 protons, 12 neutrons and 11 electrons. It is one of the
Alkali metals and very reactive. Sodium metal is soft at room temperature, melting point
97.794 ̊C.
» Common Sodium compounds:
• Sodium Chloride (Salt), NaCl
• Sodium Hydroxide, NaOH
• Sodium Oxide, Na2O
• Sodium Carbonate, Na2CO3
• Sodium Hydrogen Carbonate (Soda), NaHCO3
• Sodium Sulfate, Na2SO4
• Sodium Phosphate, Na3PO4
• Sodium Acetate, NaCH3COO
» Sodium reactions:
• 2Na + H2O = 2NaOH + 2H2
• 4Na + O2 = 2Na2O