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chemistry vocab.
Term | Definition |
---|---|
solid material that is a conducter | metal |
an element or substance that isnt a metal | nonnmetal |
an element with metal and nonmetal properties | metalloid |
group | columns |
period | rows |
element | a substance that cant be broken down |
atom | the basic unit of all living things |
nucleus | centeral part of an object |
electron shell | circles around the nucleus |
protons | positive charge, in the nucleus |
neutrons | no charge, in the nucleus |
electrons | negative charge, on the electron shells |
atomic # | same # of protons |
atomic mass | the mass of an atom |
valence electrons | electrons on the outermost shell |
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O0505836