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science vocal 2
Term | Definition |
---|---|
Matter | Everything that has mass and takes up space |
Element | Substance made of only 1 kind of atom. |
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 basic building block of matter. Can’t be any smaller. |
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 |