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Physical Science/Chemistry Practice (periodic Trends, Bonding)
Test Description: Practice
Instructions: Answer all questions to get your test result.
1) A negatively-charged ion always has more
A
protons than electrons
B
protons than neutrons
C
electrons than protons
D
neutrons than protons
2) The valence shell of a neutral atom loses two electrons. Which of the following ions might result?
A
O2-
B
K+
C
N2-
D
Mg2+
3) Which of the following elements is a nonmetal?
A
Se
B
Mn
C
Li
D
Ba
4) Which best explains why water dissolves most salts?
A
Water is the same density as salts
B
Water has a different density than most salts
C
Water is nonpolar and salts form ions in solution
D
Water is polar and salts form ions in solution
5) Which element is an alkaline earth metal?
A
Li
B
Ne
C
Ca
D
O
6) Which type of bond is responsible for atoms of pure gold to be bonded togther?
A
polar
B
ionic
C
metallic
D
covalent
7) Carbon atoms can link themselves together into long chains and rings to form a vast number of highly complicated molecules. Which of the following statements BEST explains why carbon atoms behave this way?
A
They easily form covalent bonds with each other.
B
They easily become highly charged ions.
C
They easily combine with atoms of oxygen.
D
They easily form ionic bonds with each other.
8) Aluminum oxide, Al2O3, is produced by combining Al3+ and O2- particles. What type of compound has been formed?
A
covalent
B
ionic
C
polar
D
metallic
9) In the periodic table, the rows are called
A
families
B
periods
C
classes
D
groups
10) Which group in the periodic table forms ions that have a valence of 1+?
A
8
B
16
C
1
D
2
11) Which of the following elements is classified as a metal?
A
sulfur
B
helium
C
bromine
D
lithium
12) Which of the following atoms has the largest atomic radius?
A
iodine (I)
B
magnesium (Mg)
C
barium (Ba)
D
chlorine (Cl)
13) Which of the following atoms has six valence electrons?
A
silicon (Si)
B
sulfur (S)
C
sodium (Na)
D
magnesium (Mg)
14) Which of the following elements has the same Lewis dot structure as silicon?
A
germanium (Ge)
B
arsenic (As)
C
gallium (Ga)
D
aluminum (Al)
15) Which one of the following atoms has the largest radius?
A
Cl
B
S
C
F
D
O
16) Which one of the following has the smallest radius?
A
P
B
Cl
C
Na
D
Br
17) The ability of an atom in a molecule to attract electrons is best quantified by the
A
paramagnetism
B
ionization energy
C
diamagnetism
D
electronegativity
18) Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.
A
increases, increases
B
decreases, increases
C
increases, decreases
D
stays the same, increases
19) Of the atoms below, __________ is the most electronegative.
A
Br
B
N
C
Cl
D
F
20) Of the elements below, __________ is the most metallic.
A
Al
B
Na
C
K
D
Mg
*select an answer for all questions
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