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WorksheetsPhysical Science Chapter 6
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
Typically, atoms gain or lose electrons to achieve
a)
an exchange of energy.
b)
ionization.
c)
a stable electron configuration.
d)
vaporization
2.
In an electron dot diagram, the symbol for an element is used to represent
a)
the nucleus
b)
the nucleus and all electrons
c)
the nucleus and all valence electrons
d)
the nucleus and all non-valence electrons
3.
Study the electron dot diagrams for lithium, carbon, fluorine, and neon in the figure. Choose the statement that correctly identifies the most stable of the elements.
a)
Lithium is the most stable element because it has to lose only one electron to achieve a stable configuration.
b)
Carbon is the most stable element because it can form four bonds.
c)
Fluorine is the most stable element because it has to gain only one electron to achieve a stable configuration.
d)
Neon is the most stable element because its highest occupied energy level is filled.
4.
Ionization energies tend to
a)
decrease from left to right across a period.
b)
increase from the top of a group to the bottom.
c)
increase from left to right across a period.
d)
decrease from the bottom of a group to the top.
5.
The formation of an ionic bond involves the
a)
transfer of electrons
b)
transfer of neutrons
c)
transfer of protons
d)
sharing of electrons
6.
Which of the following statements correctly describes the substance with the formula KI?
a)
Molecules of potassium iodide contain one atom of potassium and one atom of iodide.
b)
There is a one-to-one ratio of potassium ions to iodide ions.
c)
Potassium iodide is a molecular compound.
d)
Potassium iodide is a polyatomic ion.
7.
In the compound MgCl2, the subscript 2 indicates that
a)
there are two magnesium ions for each ion of chlorine
b)
the chloride ion is twice the size of the magnesium ion.
c)
magnesium and chlorine form a double covalent bond.
d)
there are two chloride ions for each magnesium ion.
8.
Which of the following is a typical property of an ionic compound?
a)
low melting point
b)
poor conductor of electric current when melted
c)
tendency to shatter when struck
d)
all of the above
9.
You see a structural formula in which the symbols for elements are connected by a long dash. You can assume that the chemical bonds in the compound are
a)
ionic
b)
covalent
c)
metallic
d)
unstable
10.
Which of the following formulas represents a compound whose molecules contain a triple bond?
a)
N≡N
b)
O=O=O
c)
O3
d)
SO3
11.
In a polar covalent bond,
a)
electrons are shared equally between atoms.
b)
a cation is bonded to an anion.
c)
electrons are transferred between atoms.
d)
electrons are not shared equally between atoms.
12.
Water has a higher boiling point than expected because
a)
there is so much water vapor in the atmosphere.
b)
water molecules are not very massive.
c)
hydrogen and oxygen form single covalent bonds.
d)
of the strong attractions between polar water molecules.
13.
Which phrase best describes a metallic bond?
a)
a bond that is formed by a metal
b)
the attraction between a metal anion and a shared pool of electrons
c)
a bond that forms between a metal and a nonmetal
d)
the attraction between a metal cation and a shared pool of electrons
14.
Metallic bonding is similar to ionic bonding because
a)
electrons are transferred between atoms.
b)
electrons are shared between atoms.
c)
the lattice that forms contains anions and cations.
d)
there is an attraction between positively charged and negatively charged particles.
15.
Many metals can be drawn into thin wires without breaking because
a)
cations are still surrounded by electrons when they shift their positions in the lattice.
b)
metals generally have low melting points.
c)
when a metal is struck with a hammer, the positions of the anions do not change.
d)
electrons have fixed positions in a metallic lattice.
16.
Which of the following groups contain three elements with stable electron configurations?
a)
lithium, krypton, argon
b)
argon, neon, barium
c)
xenon, neon, boron
d)
helium, xenon, neon
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