Ions
What is an ion?
An atom or group of atoms that has an electric charge because it has lost or gained electrons.
What is a binary ionic compound?
A bond or compound made with one metal element and one non-metal element.
What are polyatomic ions?
Two or more atoms acting together as a single unit.
Between what does a covalent bond/molecular compound occur?
Between two non-metals.
Example: CO2
When are positive ions formed?
When an atom loses one or more electrons.
What suffix do nonmetals receive?
The suffix 'ide'
What are the common suffixes of polyatomic ions?
'ite' and 'ate'
Examples: Nitrite and Phosphate
Name all the number prefixes from 1 to 10.
Mono, Di, Tri, Tetra, Penta, Hexa, Hepta, Octo, Nona, Deca
When are negative ions formed?
When an atom gains one or more electrons.
What is the name of this binary ionic compound?
K2O2
Potassium Oxide
OH- --> Hydroxide
What would the compound for lithium hydroxide be?
LiOH
What is the name of this molecular compound?
BrO3
bromine trioxide
What is the octec rule?
Atoms form ions by losing or gaining the fewest number of electrons so that they have 8 electrons in their outermost shell.
What is the formula for this binary ionic compound?
Magnesium Bromide
MgBr2
MnO4- --> Permanganate
What would the compound for cesium permanganate be?
CsMnO4
What is the molecular compound with the name dinitrogen pentoxide?
N2O5
Given this element:
Be (Beryllium)
a. Will this element lose or gain electrons?
b. How many electrons will be transferred?
a. Be (Beryllium) will lose electrons
b. It will lose 2 electrons
Be+2
What would be the binary ionic compound formula and name for these two elements?
Li & C
Formula: Li4C
Name: Lithium Carbide
Cr2O7-2 --> Dichromate
What would the compound for aluminum dichromate be?
Al2(Cr2O7)3
What is the name of this molecular compound?
Si2H3
disilicon trihydride