Sodium
Na
Sodium's atomic number is 11 and the mass number is 23. It's group name is Alkali metal and it is in group 1 and period 3. Sodium is a metal and it is a solid.
Toothpaste
Sodium is found in toothpaste under the chemical compound sodium fluoride(NaF).
Table Salt
Sodium is found in regular table salt under the chemical compound sodium chloride.
Baking Soda
Sodium is also found in baking soda under the chemical compound sodium bicarbonate.