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Type: Glossary
pressure exerted by the mass of the atmosphere; the weight of the atmosphere on Earth's surface...
Type: Glossary
the smallest particle of an element that can exist on its own (the basic building block of...
Type: Glossary
(amu) is equal to 1/12 of the mass of the 12C atom.
Type: Glossary
the number of protons in the nucleus of an atom, which determines which element it is. In a...
Type: Glossary
the radius of an atom from the nucleus to the outermost electrons.
Type: Glossary
(adenosine triphosphate), a compound used by cells for energy storage.