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WorksheetsIMF's, Periodic Trends, Formal Charge, VSEPR and Polarity
Total questions: 48
Worksheet time: 30mins
Intermolecular forces are weaker than intramolecular bonds.
True
False
Hydrogen bonding is a type of London dispersion force.
True
False
Methane (CH4) exhibits stronger hydrogen bond interactions than ammonia (NH3).
True
False
Liquids with large intermolecular forces tend to have high surface tension.
True
False
Which list of elements is arranged in order of increasing atomic radii?
Li, Be, B, C
Sr, Ca, Mg, Be
Sc, Ti, V, Cr
F, Cl, Br, I
Which of the following trends in the periodic table should be expected as the atomic number of the halogens increases from fluorine (F) to iodine (I)?
Atomic radius decreases.
Electronegativity decreases.
Atomic mass decreases.
Electron number decreases.
Which of the following atoms has the largest atomic radius
barium (Ba)
chlorine (Cl)
iodine (I)
magnesium (Mg)
Which of these describes a tendency for atomic radii as displayed on the periodic chart?
Atomic radii decrease left to right across a period.
Atomic radii increase left to right across a period.
Atomic radii decrease top to bottom down a group.
Atomic radii increase, then decrease from top to bottom down a group.
Which of these elements has the least attraction for electrons in a chemical bond?
oxygen
nitrogen
fluorine
chlorine
Which of the following correctly describes a trend from top to bottom in the group 2 (2A) elements on the periodic table?
Ionic radius decreases.
Ionic charge increases.
Atomic radius increases.
Atomic number decreases.
Which of the following corresponds to an increase in the shielding of outer electrons?
increase in the number of protons
increase in the number of valence electrons
increase in the period number of the periodic table
increase in the ionization energy of the atom
Which element requires the least amount of energy to remove the most loosely held electron
from a gaseous atom in the ground state?
bromine
calcium
sodium
silver
The element that has the greatest electronegativity is
oxygen.
sodium.
chlorine.
fluorine.
Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.
decreases, increases
increases, increases
increases, decreases
stays the same, increases
The first ionization energies of the elements __________ as you go from left to right across a period of the periodic table, and __________ as you go from the bottom to the top of a group in the table.
increase, increase
increase, decrease
decrease, increase
decrease, decrease
The high electrical conductivity of metals is primarily due to
high ionization energies
filled energy levels
mobile electrons
high electronegativities
The electron-sea model of bonding represents
covalent bonding.
metallic bonding.
ionic bonding.
hydrogen bonding.
Order the intermolecular forces (dipole-dipole, London dispersion, ionic, and hydrogen-bonding) from weakest to strongest .
dipole-dipole, London dispersion, ionic, and hydrogen-bonding
London dispersion, dipole-dipole, hydrogen-bonding, and ionic
hydrogen-bonding, dipole-dipole, London dispersion, and ionic
dipole-dipole, ionic, London dispersion, and hydrogen-bonding
Hydrogen bonds account for which of the following observation?
Hydrogen naturally exists as a diatomic molecule.
Hydrogen is easily combustible with oxygen.
Water molecules are bent or "V-shaped."
For its molar mass, water has a high boiling point.
Which of the species below would you expect to show the least hydrogen bonding?
NH3
H2O
HF
CH4
The molecules in a sample of solid SO2 are attracted to each other by a combination of
London forces and H-bonding
H-bonding and ionic bonding
covalent bonding and dipole-dipole interactions
London forces and dipole-dipole interactions
The bonds between hydrogen and oxygen within a water molecule can be characterized as __________.
hydrogen bonds
London dispersion forces
intermolecular forces
intramolecular forces
When a water molecule forms a hydrogen bond with another water molecule, which atoms are involved in the interaction?
a hydrogen from one molecule and a hydrogen from the other molecule
a hydrogen from one molecule and an oxygen from the other molecule
an oxygen from one molecule and an oxygen from the other molecule
an oxygen and a hydrogen from the same molecule
What is responsible for capillary action, a property of liquids?
surface tension
cohesive forces
adhesive forces
viscosity
two of these
When a nonpolar liquid displays a convex meniscus, which of the following explains this behavior?
It has a low surface tension, and therefore clings to the glass.
The cohesive forces are stronger than the adhesive forces to the glass.
The adhesive forces to the glass are stronger than the cohesive forces.
The liquid's viscosity is low.
The measure of resistance to flow of a liquid is
vapor pressure
London forces
surface tension
viscosity
