1) it is commonly assumed that the isotopic abundances of a particular element are
independent of the source of the element. if isotopic abundance does vary with location
what is the consequence of that observation?
a.nothing, the observation is totally unimportant.
b.the atomic weight determined for the element will depend on the source from which
the element was obtained.
c.the chemical behavior of the element will depend on the source from which the
element was obtained.
d.the atomic weight and the chemical behavior of the element will depend on the source
from which the element was obtained.
2) which of the following bonds is the most polar?
a.c-h
b.c-n
c.c-o
d.c-f
3) which of the following is true of the atomic weight of an element?
a.it is the weight of heaviest isotope.
b.it is the weight lightest isotope.
c.it is the weight of the most abundant isotope.
d.it is a weighted average obtained from the weights and abundances of the isotopes.
4) what is the name of the lowest possible energy state for an electron?
a.bohr state
b.bottom state
c.ground state
d.none of the above
5) the symbols for the elements in the period table are derived from three languages.
which of the following is not one of those languages?
a.english
b.french
c.german
d.latin
6) which of the following drugs are the most common treatment for hypertension?
a.ace inhibitorsc. blockers
b.diureticsd.vasodilators
7) an ionic bond is associated with which of the following?
a.interactions between nuclei
b.equal sharing of electrons
c.unequal sharing of electrons
d.the transfer of electrons
8) what is the maximum number of unpaired electrons in a lewis dot structure?
a.1
b.3
c.4
d.8
9) what is the valence shell electron configuration of all the noble gases except for
helium?
a.ns2
b.ns2np3
c.ns2np6
d.np8
10) which subatomic particle(s) are found in the nucleus?
a.electrons
b.neutrons
c.protons
d.protons and neutrons
11) which of the following is the correct lewis dot picture of the oxygen atom?
a.
b.
c.
d.
12) what is the correct chemical name for a compound with the formula n2o3?
a.nitrogen oxide
b.nitrogen trioxide
c.nitrogen ozide
d.dinitrogen trioxide