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Matter
Term | Definition |
---|---|
Matter | Anything that has mass |
Element | A composed substance |
Periodic table | table of elements |
atomic number | protons,electrons |
atomic symbol | name of the element |
atomic mass | mass of the element |
compound | substance in 2 elements are chemically joined |
mixture | two substances are mixed |
atom | the smallest unit of an element |
nucleaus | the core of an atom |
proton | positively charged |
electron | tiny negatively charge |
electron shells | fixed orbits or paths |
molocule | a molecule that contains at least two different elements |
chemical bond | A chemical bond is an attraction between atoms that allows the formation of chemical substance |
neutron | small uncharged |