Na=SODIUM
Sodium, like lithium, is a highly reactive metal that will burn in water. The element doesn't occur naturally in pure form, but it's fairly common in science labs. The soft, shiny metal is stored under oil to protect it from oxidation.
Sodium, like lithium, is a highly reactive metal that will burn in water. The element doesn't occur naturally in pure form, but it's fairly common in science labs. The soft, shiny metal is stored under oil to protect it from oxidation.