CHEM ionic bond test
The correct name for SrO is
strontium oxide
Which is not a characteristic of most ionic compounds?
they have low melting points
an electron in the highest occupied energy level of an atom
valence electron
How many valence electrons are in an atom of magnesium
2
What is the charge on the strontium ion?
2+
How many electrons does a nitrogen atom need to gain to attain a noble gas electron configuration?
3
How many electrons does nitrogen gain in order to achieve a noble gas electron configuration?
3
How many valence electrons are in an atom of phosphorus?
5
The correct name for Cu(CN)2 is
Copper (II) cyanide
The correct formula of iron (III) bromide is
FeBr3
Which of the following elements does not need 8 valence electrons
Helium
A chemical formula that describes the makeup of a single molecule
molecular formula
Atoms will gain or lose enough electrons to become isoelectronic with a noble gas
octet rule
Which of the following compounds has the formula KNO
potassium nitrate
The formula of ammonium carbonate is
(NH4)2CO3
Predict the formula of the ionic compound that forms from aluminum and oxygen
Al2O3
What is the formula unit of aluminum oxide?
Al2O3
Predict the formula of the ionic compound that forms from calcium and fluorine
CaF2
Metals tend to ____ valence electrons and nonmetals tend to _____ them
Lose, gain
Which pair of elements is most likely to form an ionic compound?
Magnesium and chlorine
Predict the formula of the ionic compound that forms from magnesium and fluorine
MgF2
Predict the formula of the ionic compound that forms from magnesium and oxygen
MgO
What is the formula for sodium sulfate?
Na2SO4
What is the formula unit of sodium nitride
Na3N
Ionic compounds are normally in which physical state at room temperature?
Solid
The term that means dissolved in water
aqueous
Chromium and chlorine form an ionic compound whose formula is CrCl3. The name of this compound is __________.
chromium(III) chloride
A 3D, repeating pattern of + and - ions, formed by an ionic compound
crystal
a depiction of valence electrons around the symbol of an element
electron dot structure
Tendency for an atom to attract electrons when chemically bonded to another atom
electronegativity
A chemical formula that is arranged in the smallest whole number ratio
empirical formula
A transfer of electrons
ionic bonding
How does oxygen obey the octet rule when reacting to form compounds?
it gains electrons
What is the name of the ionic compound formed from lithium and bromine?
lithium bromide
The correct name for Mg(ClO3)2 is
magnesium chlorate
