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Chemistry Facts

Hydrogen - The Simplest Element

Hydrogen is the simplest element; an atom consists of only one proton and one electron. It is also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn't ... Continue reading

Fuel cell.

How Sublime

Show of hands. How many of you can't resist playing with dry ice? Dry ice is carbon dioxide frozen to -109.3 degrees F (-78.5 C). Throw a piece in water and it bubbles and boils. Expose a piece to air ... Continue reading

Sublimation of Comet's Tail

Carbon Dating

As isotopes break down, or decay they give off radiation. Materials that decompose in this way are said to have a 'half-life'. As the quantity of material present decreases, so does the actual rate at ... Continue reading

Scientists date fossils by measuring carbon.

When Chlorine Met Sodium...

Sodium is a required element in human physiology. The eleventh element in the periodic table, sodium is a soft, silvery white metal that can be easily cut through with a paring knife. It is highly ... Continue reading

A crystal of sodium chloride.