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ADV 8th Benchmark Review 2-a
Test Description: Chemistry review for benchmark 2
Instructions: Answer all questions to get your test result.
1) Which of the following Group 15 elements has the most metallic properties
A
N
B
Sb
C
Bi
D
P
2) Pure silicon is chemically classified as a semi-metal because silicon
A
is malleable and ductile
B
is an excellent conductor of heat and electricity
C
exhibits metallic and nonmetallic properties
D
exhibits hydrogen bonding
3) The observed regularities in the properties of elements are periodic functions of their
A
mass numbers
B
non-valance electrons
C
oxidation states
D
atomic numbers
4) Elements in the Periodic Table are arranged according to their
A
relative size
B
atomic mass
C
atomic number
D
relative activity
5) In which set do the elements exhibit the most similar chemical properties
A
Al, Si, and P
B
N, O, and F
C
H, Br, and Rn
D
Li, Na, and K
6) The atomic number of an atom is determined by the number of
A
protons
B
neutrons
C
isotopes
D
electrons
7) Of the following, the group that contains elements that are the most reactive is the
A
alkaline earth metals
B
alkali metals
C
inert gases
D
carbon family
8) Unlike metals, solid nonmetals are
A
good conductors of heat and electric current
B
ductile
C
malleable
D
dull and brittle
9) Unstable atomic nuclei that release fast moving particles and energy are
A
radioactive
B
alpha particles
C
alloys
D
isotopes
10) Why is the mass of a carbon atom greater than the ttal mass of its protons and electrons?
A
Most of the atom's volume is the sphere-shaped cloud of electrons
B
One or more neutrons in the nulceus add mass to the atom.
C
The mass of a proton is greater than the mass of an electron.
D
A proton is positively charged and an electron is negatively charged
*select an answer for all questions
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