WorksheetsChemistry Final Review Part II
Total questions: 30
Worksheet time: 15mins
Mendeleev predicted that the spaces in his periodic table represented
radioactive elements.
permanent gaps.
undiscovered elements.
The periodic law states that the physical and chemical properties of elements are periodic functions of their atomic
masses.
numbers.
radii.
The most useful source of general information about the elements for anyone associated with chemistry is a
calculator.
table of isotopes.
periodic table.
If 5 atoms of magnesium (Mg) are represented on the reactant side of a balanced chemical equation, then number of magnesium atoms on the product side must be
0.
5.
more than 5.
An orbital may be defined as
the most stable state of an atom.
the positively charged central part of an atom.
a highly probable location of an electron within the atom.
A chemical bond resulting from electrostatic attraction between positive and negative ions is called a
covalent bond.
ionic bond.
dipole bond.
For which of the following does the formula NOT represent a molecule?
ammonia, NH3
carbon dioxide, CO2
table salt, NaCl
The person whose work led to a periodic table based on increasing atomic number was
Moseley.
Rutherford.
Cannizzaro.
The part of the atom where the electrons will NOT be found is in the
electron cloud.
nucleus.
orbitals.
An ionic bond results from electrostatic attraction between
ions.
dipoles.
orbitals
The periodic law states that the properties of elements are periodic functions of their atomic numbers. This means that the identifying characteristic for an elements position in the periodic table is the
mass number.
number of nucleons.
number of protons.
A covalent bond in which there is an unequal attraction for the shared electrons is
ionic.
polar.
nonpolar.
Mendeleev left spaces in his periodic table and predicted the existence and ________ of several elements.
colors
radioactivity
properties
All the following are polyatomic ions EXCEPT the
hydrogen sulfate ion.
sulfate ion.
sulfide ion.
The formula for the compound formed between calcium and chloride ions is
CaCl
CaCl3
CaCl2
Mendeleev is credited with developing the first successful
periodic table.
test for radioactivity.
use of X rays.
A link between atoms resulting from the mutual attraction of their nuclei for electrons is called a
dipole.
Lewis Structure.
chemical bond.
A small whole number that appears in front of a formula in a chemical equation is called a
superscript.
ratio.
coefficient.
The idea of arranging the elements in the periodic table on the basis of chemical and physical properties for the most part according to their atomic masses, is attributed to
Mendeleev.
Bohr.
Ramsey.
What is the name in the old system of the copper (I) ion in a compound name?
copper
cuprous
chromic
If two covalently bonded atoms are identical, the bond is identified as
nonpolar covalent.
nonionic.
coordinate covalent.
The formula for an ionic compound represents one
crystal.
ion.
formula unit.
The formula for barium hydroxide is
BaOH.
Ba(OH).
Ba(OH)2.
In writing an equation in which hydrogen gas appears as a product, the correct representation of hydrogen gas is
OH.
2H.
H2.
A chemical bond resulting from the sharing of electrons between two atoms is called a
ionic bond.
orbital bond.
covalent bond.
According to the law of conservation of mass, the total mass of the reacting substances is
sometimes more and sometimes less than the total mass of the products.
always more than the total mass of the products.
always equal to the total mass of the products.
A covalent bond consists of
two electrovalent ions.
a shared electron pair.
an octet of electrons.
Atoms with a strong attraction for electrons they share with another atom exhibit
zero electronegativity.
Lewis electronegativity.
high electronegativity.
The charge of the polyatomic phosphate ion is
4-.
3-.
1-.
The formula which gives the total number of atoms of each type of element that are present in one molecule of a compound is the
empirical formula.
molecular formula.
formula unit.
