Sodium is silver in color and solid at room temperature with a density of 0.968 g/cm3. It has a boiling point of 1,621 degrees Fahrenheit and a melting point of 207.89 degrees.
Sodium releases heat when it comes into contact with water, which means it is an exothermic element. It oxidizes immediately when exposed to oxygen, and when burned in oxygen under pressure, it forms sodium superoxide.
Sodium is a metallic element, and it is the sixth most abundant element on Earth. It is readily found in minerals and the oceans. However, pure sodium is not found naturally in the oceans but it is essential for all plant and animal life.