Sodium Facts

Sodium Facts
Sodium (Na) is a silver-white alkalai metal with an atomic number of eleven. It is a soft metal that does not occur naturally on Earth as a free element.
Interesting Sodium Facts:
It is the sixth most abundant metal in the Earth's crust.
Sodium is found in many minerals.
Most of its salts are water soluable.
Sodium was first isolated from sodium hydroxide by Humphry Davy in 1807.
Sodium is a vital element for living organisms.
Of the twenty known isotopes of sodium, only one—Na-23—is stable.
Another isotope, Na-24, has a half-life of 20.2 microseconds.
Sodium compounds are used in nearly every form of industry.
Elemental sodium can be very dangerous since it generates inflammable hydrogen and sodium hydroxide.
Powdered sodium can spontaneously combust in the presence of oxygen.
Typical fire extinguishers are ineffective on sodium fires and can actually increase the emergency.
Sodium in its compound forms has a long and important history.
It has been used as a form of currency, medical treatments, and trade product for thousands of years.
Pure sodium at standard conditions can easily be cut with a knife, despite being a metal.
The metal tarnishes to form a white coating of sodium hydroxide and sodium carbonate very quickly at standard conditions.
At higher elevations, the tarnish takes on a black, red transparent, or clear transparent coating, depending on the elevation.
The most common compound of sodium is sodium chloride, NaCl, or ordinary table salt.
Sodium chloride has been known to be a part of animal diets since prehistoric times.
Sodium chloride is abundantly present in mines and in seawater on Earth.

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