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8 Cards in this Set

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  • Back

element

a material that cannot be broken down into any thing smaller by chemical reactions

metal

elements that share common properties such as shiny luster, conductivity, and flexability

atom

the smallest unit of an element that retains the properties of that element

nucleus

the center of an atom. it is made of protons an neutrons

proton

a particle with one unit of positive electric charge

neutron

a particle with no electric charge, it is neutral

electron

smaller particles with one unit of negative electric charge each

molecule

particles with more than one atom joined together