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50 questions
A covalent bond forms when atoms ___________ electrons.
gain
share
increase
transfer
Why do atoms bond?
They typically don't bond
To add or take away energy levels
To have a full valence shell.
To have a full inner shell
Ionic bonding is between a
nonmetal and nonmetal
metal and nonmetal
metal and metal
Depends on the situation
CaCl2 is an example of what type of bond?
Covalent
Metallic
Ionic
Which category of elements usually form negative ions?
metals
nonmetals
metalloids
noble gases
Predict the bond between Mg and Cl
covalent
ionic
metallic
none of the above
What charge would a potassium (K) ion have?
+1
-1
+2
-2
13. What elements generally make a covalent bond?
metal and nonmetal
2 or more nonmetals
metal
none of the above
What is a valence electron?
an electron that is found in the outermost shell of an atom.
an electron found in the innermost shell of an atom.
an electron found in the middle shell.
What is the number of valence electrons for Carbon (Group 14)?
1
2
3
4
What is the number of valence electrons for Neon and other Noble Gases besides Hydrogen?
5
6
7
8
______ molecules are found in nature as pairs of two atoms of the same type covalently bonded together.
Diatomic
Monatomic
Polyatomic
Network
Which of the following types of elements can exist in monatomic form?
alkali metals
transition metals
halogens
noble gases
Which of the following types of elements can exist in nature as diatomic molecules?
alkali metals
transition metals
halogens
noble gases.
Which compound would have a very low melting point?
sodium chloride
copper (II) sulfate
sulfur dioxide
aluminum
Formula for barium sulfide
B2S3
BaS
Ba2S
BaS2
Name for NaH
sodium hydrogen
potassium hydride
sodium hydride
potassium hydrogen
Name for Hg2S
mercury (IV) sulfide
mercury (III) sulfide
mercury (II) sulfide
mercury (I) sulfide
Formula for lead (II) chloride
PbCl2
Pb2Cl
Pb2Cl3
Pb3Cl2
Name for LiOH
lithium hydrogen oxide
lithium hydroxide
lithium (II) hydroxide
lithium (I) hydroxide
Formula for iron (II) carbonate
FeCO3
Fe2CO3
FeCO2
Fe2CO2
Name for Ge4C3
Germanium (III) carbide
Germanium (IV) carbide
Germanium carbide
Germanium carbine
Formula for Cobalt (II) bromide
CoBr
Co2Br2
Co2Br
CoBr2
Name for SrBr2
strontium bromine
strontium bromide
strontium dibromide
strontium dibromine
Name for CO
carbon monoxide
carbon oxide
monocarbon oxide
carbide monoxide
Formula for aluminum phosphate
Al2P3
Al3PO4
AlP
AlPO4