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15 Cards in this Set
- Front
- Back
- 3rd side (hint)
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energy level
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a region around the nucleus of an atom where electrons are found
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**electrons are found in one of these
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nuetron
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an uncharged particle found in the nucleas of an atom
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nuetron-nuetral (center of atom)
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proton
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a subtomic particle identical with the nucleaus and the hydrogen atom
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electron
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a negitivly charged atom which is a subtomic particle
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nucleus
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the center core of an atom that contains protons and nucleus
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element
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substances that contain only one kind of matter
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atomic mass
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the average mass of all the known isotoped of an element
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symbol
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the number on the periodic table of elements
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atomic number
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the number of protons that an atom contains
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atom
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the smallest particle of an element that can exist alone or in combinations with other atoms
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molecule
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the smallest particle of a compound that retains the property of the compound.
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compound
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substances made by two or more elements that cannot be seperated by physical means
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matter
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anything that has mass and takes up space
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brittleness
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a measure of a materials tendency to shatter
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elasticity
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a measure of a dolids ability to stretch and then return to its original shape and size.
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