chemistry 7
Terms
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- Chemical symbol
- a notation using one to three letters to represent an element
- empirical formula
- the formula giving the simplest ratio between the atoms of an elements present in a compound
- ionic compound
- a compound that is formed by ionic bonds
- molecular formula
- a formula indicating the actual number of each element making up a molecule
- oxidation number
- the apparent charge on an atom of the electrons in a compound are assigned according to established rules
- chemical formula
- the notation using symbols and numerals to represent the composition of substances
- molecule
- a neutral group of atoms held together by covalent bonds
- binary compound
- a compound composed of only two compounds
- formula unit
- the amount of a substance represented by its formula
- polyatomic ion
- a group of atoms covalently bonded but possesing an overall charge
- ion
- an atom or molecule that has gained or lost one or more electrons