Chemistry test 1 Flashcards
kkbtkey term: Element
- most simple kind of pure substance
- approx. 118 known elements
- divided into metals and non-metals
key term: atom
a particle of matter that uniquely defines a chemical element.
key term: compound
Pure substance formed when atoms of different elements are bonded together
key term: molecule
a group of atoms bonded together
key term: bonded
attached/held together, attraction between atoms
key term: binary
two of something, made of only two different elements
key term: polyatomic
three or more of something, made of three or more different element
key term: ionic
a compound made of metals and non metals
key term: molecular/covalent
a compound made of only metals
key term: nomenclature
A system for naming, rules for writing names and formulas for compounds.
key term: multivalent
metals that have different chargers and/or valence numbers
key term:polyatomic ion
group of elements with a charge ex. (NO3)-1
key term: prefix
something that is added to beginning of a word to alter it or change it, used in molecular nomenclature to indicate number of atoms of each element
key term: acid
a compound that will separate and produce H + when dissolved in water
key term: binary acid
Acid that consiste of only two elements (one of which is water)
