Chemical Nomenclature Flashcards
(82 cards)
Two general classes of compounds
- Ionic compound (salts)
2. Molecules
2 general ways of describing the composition of compounds
- Chemical formula
2. Name
Ionic compound (salts)
Formed when metal reacts with a nonmetal
Molecules are formed when…
A nonmetal reacts with a nonmetal
Where are metals located on the periodic table?
Lower part
Where are nonmetals located on the periodic table?
Upper right + H
In binary ionic compounds, the metal forms a….
Positive ion called a cation
In binary ionic compounds, the nonmetal forms a….
Negative ion called an anion
What is the total charge of a binary compound?
Zero because cation + anion
How are binary ionic compounds named?
The nonmetal follows the metal The name of the nonmetal is obtained from the stem of the name of the element and adding "ide" Carbon ➡️ carbide Nitrogen ➡️ nitride Oxygen ➡️ oxide Sulfur ➡️ sulfide
2 classes of metals
Group IA metals= alkali
Group IIA metals= alkali earth metals and Al
Charges of metals
Group IA= +1 charge
Group IIA= +2 charge
Aluminum= +3 charge
In ionic compounds, the integers’ subscripts represent….
The relative number rather than the absolute number of ions
Iron oxide
Need to specify charge state so need to specify the metal group
FeO= iron II oxide and has a charge state of +2
Fe2O3= iron III oxide and has a charge state of +3
Cr3N2
Chromium II nitride
MnCl2
Manganese II chloride
Ti3P4
Titanium IV phosphide
Cr2O3
Chromium III oxide
ZnF2
Zinc II fluoride
PbO
Lead II oxide
Na2O
Sodium oxide
Ca3N2
Calcium nitride
KCl
Potassium chloride
MgI2
Magnesium iodide