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