| Term | Definition |
|---|
| atom | the small unit of a pure substance that still has the properties of that substance |
| nucleus | the center of an atom, which contains protons, and nuetrons |
| proton | a subatomic particle that has a positive electric charge |
| nuetron | a subatomic particle that has the same mass as a proton but no electric charge |
| electron | a negatively charged subatomic particle |
| atomic number | the number of protons in an atom |
| element | a pure substance that is made up of only one kind of atom |
| metal | an element that conducts heat and electricity well |
| malleability | the property of a metal that indicates that it can be bent and rolled into sheets |
| nonmetal | an element that does not conduct electricity and is not shiny or malleable |
| periodic table | a table of elements arranged according to their atomic unmber |
| solid | a state of matter that has definite shape and matter |
| liquid | a state of matter that has definite volume but no shape |
| gas | a state of matter that has no definite shape or matter |
| compound | a substance formed of the atoms of two or more elements |
| acid | a compound that reacts easily with other substances and turns blue litmus paper red |
| base | a compound that reacts easily with other substances and turns red litmus paper blue |
Combine with other sets
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