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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 |