Unit 3 (Chemical Compounds and Naming Them) Flashcards
Elements combined together and unlike mixtures, they have a definite proportion
Compounds
An equation that represents the elements present in a compound
Chemical Formula
EX) H2O
These ions have the same names as their metals, ex) Sodium Ion, Calcium Ion
Cations
These ions are named by changing the suffix of the metal to -ide, ex) Fouride Ion, Oxide Ion
Anions
A group of common Ions composed of more than one atom and can be either positive or negatively charged
Polyatomic Ions
Anions containing oxygen and another element
Oxyanions
If there are two ions in a series, the one with the most oxygen atoms has what suffix?
-ate
If there are two ions in a series, the one with the least oxygen atoms has what suffix?
-ite
the prefix hypo- means what?
Less than
This oxyanion has a charge of 1 EX) ClO-
The prefix per- means what?
More than
EX) ClO4
True or False: In ionic compounds, polyatomic ions act as one?
True
EX) Mg(OH)2
When naming Ionic compounds, which goes first the Cation (metal) or Anion (nonmetal)?
Cation (metal)
EX) Li+ and Br- form Lithium Bromide or LiBr
Ionic compounds are made up of what?
Metal + Nonmetal
Molecular compounds are made up of what?
Two nonmetals
List the exceptions of Ionic Compound Cations
- NH4+ or the Ammonium Ion
- Ions of Mercury
- Hydrogen and Carbon sometimes form as Ions