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WorksheetsUnit 4 - Molecular Geometry
Total questions: 29
Worksheet time: 19mins
An ionic bond results from electrostatic (+/-) attraction between large numbers of
cations and anions
atoms
dipoles
orbitals
To draw a Lewis Structure, it is NOT necessary to know
which atoms are in the molecule
bond energies
the number of valence electrons for each atom
the number of atoms in the molecule
Molecules that cannot be represented by a single Lewis Structure are said to have
dipole
covalent
hybrid
resonance
The Lewis Dot Notation for an atom of chlorine is
The Lewis Structure for a molecule of bromine is
An ion of an element differs from an atom of that same element with respect to
mass
number of protons
number of neutrons
number of electrons
What is the ionic charge of the Al in the formula AlBr3?
0
+1
+2
+3
The correct Lewis Structure used to show an ionic combination of potassium and bromine is
A certain atom has 17 protons, 18 neutrons, and 17 electrons. The ion of this atom has an ionic charge of –1. The ion would have
18P 18N 17 e
16P 18N 17e
17P 18N 18e
17P 18N 16e
A bond that involves shared pairs of electrons is called a(n)
ionic bond
covalent bond
metallic bond
intermolecular bond
Which compound would have a total of two single bonds?
HCl
CaCl2
CH4
AlF3
The total number of ELEMENTS in the compound H2SO4 is
1
3
5
7
The total number of ATOMS in one molecule of H2SO4 is
1
3
5
7
Bonds are classified as being ionic or covalent based upon a difference in
ionization energy
electron affinity
electronegativity
hybridization
When an atom loses, gains, or even unequally shares electrons, it gets a(n)
proton
valence shell
oxidation number
group number
A molecule containing two atoms of the same element is said to be:
monotomic
diatomic
Covalent bond that involves two shared pairs of electrons is known as:
double bond
single bond
triple bond
hybrid bond
A chemical bond that results from the attraction between metal ions and the surrounding “sea” of electrons is known as a:
covalent bond
ionic bond
metallic bond
The lowest ratio of ions within an ionic crystal is called a:
formula unit
ionic formula
molecular formula
A pair of electrons on the central atom and not involved in bonding is called:
lone pair
covalent pair
ionic pair
Which of the following is NOT a diatomic molecule?
hydrogen
helium
iodine
chlorine
Which of the following IS a diatomic element?
neon
carbon
nitrogen
phosphorous
Using the table of electronegativity, predict the type of chemical bond for CaS.
ionic bond
nonpolar covalent bond
polar covalent bond
Using the table of electronegativity, predict the type of chemical bond for NH3
ionic bond
polar covalent bond
nonpolar covalent bond
Using the table of electronegativity, predict the type of chemical bond for SrCl2
ionic bond
polar covalent bond
nonpolar covalent bond
Give the ionic charge for the Oxide ion.
16
+2
-2
8
What is the molecular geometry for NH3
tetrahedral
bent
trigonal planar
trigonal pyramidal
linear
What is the molecular geometry for H2O
tetrahedral
bent
trigonal planar
trigonal pyramidal
linear
What is the molecular geometry for CBr4
tetrahedral
bent
trigonal planar
trigonal pyramidal
linear
