The nucleus of an
atom contains _____.
a. protons and neutrons.
b. protons and electrons.
c.
electrons and neutrons.
d. protons, neutrons, and electrons.
a. protons and neutrons.
Two atoms with the
same atomic number but
different mass
numbers
are called _____.
a. mutants.
b. isomers.
c. isotopes.
d. symbiots.
c. isotopes.
Select the incorrect statement
about the mass
and volume of
an atom.
a. The mass is determined mostly by the protons
and
neutrons.
b. The volume is mostly empty space.
c. The mass
is concentrated in the nucleus.
d. The volume is determined by
the arrangement
of the protons.
d. The volume is determined by the
arrangement of the protons.
For an atom of fluorine, the
atomic number is ___ and
the
average atomic mass is ___.
a. 9; 18.988 amu
b. 18.998; 9 amu
c. 10; 19 g
d.
9; 9 g
a. 9; 18.988 amu
Atomic weights on the periodic
table are decimal numbers
instead of integers because ______.
a. the number of protons + neutrons determines atomic
weight.
b. of the existence of isotopes.
c. of the
very small mass of electrons compared to
protons and
neutrons.
d. the number of protons + electrons determines atomic
weight.
b. of the existence of isotopes.
The elements found on
the right side of the
periodic
table tend to
______ electrons.
a. gain
b.
lose
c. keep
d. share
a. gain
Metals and nonmetals
react to form
________
compounds.
a. molecular
b. mixed
c. empirical
d. ionic
d. ionic
Positive ions are called
a. positrons.
b. anions.
c.
cations.
d. nucleons.
c. cations.
Compounds composed
only of carbon and
hydrogen are
called
a. binary acids.
b. carbohydrates.
c.
hydrocarbons.
d. alkanes.
c. hydrocarbons.
The elements located in
Group VIIA (Group 17)
on the
periodic table are
called
a. alkali metals.
b. noble
gases.
c. chalcogens.
d. halogens.
d. halogens.
Which of the formulas
below does not represent
a compound
that actually
exists?
a. CaCO3
b. H2O2
c.
KMnO4
d. Na2PO3
d. Na2PO3
Which name is
incorrectly paired with
the formula?
a.
hydroxide ion; OH–
b. barium(II) chloride; BaCl2
c. ammonia;
NH3
d. sulfur dioxide; SO2
b. barium(II) chloride; BaCl2
Acids produce _____
ions.
a. OH–1
b. OH+1
c.
H+1
d. H–1
c. H+1
NaOCl is named ______.
a. sodium chlorate.
b. sodium chlorite.
c. sodium
perchlorate.
d. sodium hypochlorite.
d. sodium hypochlorite.
LiNO3 is named
a. lithium nitrate.
b. lanthanum
nitrate.
c. lanthanum nitrite.
d. lithium nitrite.
a. lithium nitrate.
The formula for
aluminum carbonate is
a.
Al2(CO3)3.
b. AlCO3.
c. Al2C3.
d. Al3(CO3)2
a. Al2(CO3)3.
Fe2O3 is named
a. diiron trioxide.
b. iron(III)
oxide.
c. ferrous oxide.
d. ironic oxide.
b. iron(III) oxide.
Which acid is not an
oxyacid?
a. hydrochloric acid
b.
nitric acid
c. sulfurous acid
d. acetic acid
a. hydrochloric acid
HIO4 is named
a. iodic acid.
b. iodous acid.
c.
periodic acid.
d. hydrogen iodate.
c. periodic acid.
Cl2O7 is named
a. chlorine(VII) oxide.
b. dichlorine
hexaoxide.
c. dichlorine heptaoxide.
d. bichlorine heptaoxide.
c. dichlorine heptaoxide.
N2O5 is named
a. Nitrogen pentaoxide.
b. Dinitrogen
pentaoxide.
c. Nitrogen oxide.
d. Dinitrogen oxide.
b. Dinitrogen pentaoxide.
How is CuNO3.2H2O5 is named?
• This is a hydrate and you name the ionic compound first followed by
the number of waters then the word hydrate
• So it is
named: Copper(I)nitrate dihydrate