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chapter 3 vocab

MATTER Everything that has mass and takes up space
ELEMENT The ingredients that make up all other substances.  Can't be broken down into other substances
METALS good conductors of electricity and heat.  Can bend without breaking.  Most have a gray color
NONMETALS Do not conduct heat / electricity very well.  May be a gas or a solid
SEMI‐METALS sometimes like metals and sometimes like nonmetals
ATOM the smallest part of an element that still acts like that element
ATOMIC THEORY states that everything is made of atoms
COMPOUND a type of matter made of two or more elements
MOLECULE smallest particle of a compound that still acts like that compound
PROTON Positive charge. Found in the nucleus
NEUTRON No charge. Found in the nucleus
ELECTRON Negative charge. Orbits the nucleus