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WorksheetsBonding Trends Naming Benchmark Review
Total questions: 29
Worksheet time: 18mins
If there are two electron domains (either bonds OR lone pairs) around an atom, it could form a molecule of which shape?
linear
trigonal planar
tetrahedral
bent.
In the Lewis dot diagram of an oxygen atom, there are _______ paired and _______ unpaired electrons/dots.
4, 2
2, 4
6, 0
6, 6
Magnesium forms ions with charge
+2
-2
+1
-1
Sulfur forms ions with charge
+2
-2
+1
-1
Which of the following is an ionic compound?
NaCl
CH4
H2O
HF
Which of the following is a covalent compound?
NaCl
CH4
MgBr2
KOH
The correct name for CaCl2 is
calcium chloride
calcium dichloride
dicalcium dichloride
calcium (II) chloride
The correct name for N2O4 is
nitrogen oxide
dinitrogen tetroxide
nitrogen tetroxide
nitrogen (III) oxide
How many covalent bonds does hydrogen usually make with other atoms?
1
2
3
4
How many covalent bonds does carbon usually make with other atoms?
1
2
3
4
How many covalent bonds does nitrogen usually make with other atoms?
1
2
3
4
How many nonbonding electron pairs are on the oxygen in H2O?
1 pair
2 pairs
3 pairs
no nonbonding pairs present
How many nonbonding electron pairs are on the nitrogen in NH3?
1 pair
2 pairs
3 pairs
no nonbonding pairs present
Which of the following describes metallic elements?
conducts electricity, high melting point, malleable
does NOT conduct electricity, high melting point, malleable
low melting point, usually liquid at room temperature
The molecular shape around the carbon in CH4 is
trigonal planar
tetrahedral
trigonal bipyramidal
linear
Which of the following molecules contains one or more DOUBLE bonds?
O2
N2
Br2
H2
Which of the following molecules contains one or more TRIPLE bonds?
O2
N2
Br2
H2
Which of the following chemical formulas represents dinitrogen trioxide?
N2O4
N2O3
N3O4
NO
The shape of the molecule PCl5 (phosphorous pentachloride) would be
tetrahedral
trigonal planar
trigonal bipyramidal
seesaw
This could be the dot diagram of
Mg
Cl
C
O
What is the goal of the Lewis Dot Structure?
To determine the electron position.
To show the element's valence electrons & bonding capabilities.
To find the atomic mass of an element.
To search for the number of electrons in an individual atom.
According to the octet rule most elements need _______ valence electrons.
2
8
6
18
This is a correct dot diagram for neon (Ne)
true
false
