Atoms, Molecules and Ions
Trends of the Periodic Table
Naming Compounds
Molecular Geom/Bonding
Solids, Liquids, and Gases
100
What type of charge does a cation have?
Positive
100
Nonmetals are poor conductors of heat and they also tend to
A. be brittle
B. conduct an electrical current
C. have a shiny luster
D. be malleable
E. lose electrons
A. be brittle
100
XeF6
xenon hexafluoride
100
The geometrical shape of a H2O molecule.
Bent
100
According to the kinetic-molecular theory, particles of matter are in motion in
a. gases only.
b. gases and liquids only
c. solids, liquids, and gases.
d. solids only
c. solids, liquids, and gases.
200
What are the three subatomic particles?
Proton, neutron, and electron
200
As one moves from left to right ( → ) within a period across the periodic table, the atomic radius of the elements encountered tends to:
Increase
200
What is the common name for the compound dihydrogen monoxide?
Water
200
The bond angles in a trigonal planar molecule.
120°
200
In which of the following three states of matter are the particles the closest together?
Solid
300
Does a given element have one specific atomic mass?
No. Each element can have multiple isotopes which have different weights.
300
Which of the following elements has the lowest ionization energy?
a. beryllium
b. nitrogen
c. magnium
d. cesium
d. cesium
300
Ba(H2PO4)2
barium dihydrogen phosphate
300
They hybridization of one of the oxygens in an O2 molecule.
sp hybridization
300
Which of the following is an example of a solid?
Air you breathe
Coffee you drink
A chair you sit on
Water you swim in
A chair you sit on
400
What is the definition of a molecule ?
A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
400
In period 3 of the periodic table the atom with the largest atomic radius is located in group
Group 1
400
As2O5
diarsenic pentoxide
400
The type of hybridization shown by carbon in the Ethene molecule (C2H4).
sp2 hybridization
400
By which process do gases take the shape of their container?
a. evaporation
b. Expansion
c. adhesion
d. Diffusion
B. Expansion
500
the molar mass of each molecule is representative of what in the make of the elemental sample
The weighted average of the mass of the different isotopes of the elements
500
Which element is a liquid at room temperature?
A. K
B. Hg
C. I2
D. Mg
E. Kr
B. Hg
500
Sr2SiO4
strontium silicate
500
The amount of lone pairs in the sulfite ion (SO32-) in regards to sulfur.
a)0
b)1
c)2
d)3
b)1
500
Which is an example of effusion
a. air slowly escaping from a pinhole in a tire
b. the aroma of a cooling pie spreading across a room
c. helium dispersing into a room after a balloon pops
d. oxygen and gasoline fumes mixing in an automobile carburetor
a. air slowly escaping from a pinhole in a tire