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Atomic Structure 2
Test Description: Atomic Structure Review
Instructions: Answer all questions to get your test result.
1) Each element in the periodic table ____________
A
must be handled with great care or it will react with air.
B
has a unique set of characteristics based on atomic number.
C
combines with oxygen in endothermic reactions.
D
contains hundreds of protons and neutrons per atom.
2) According to the periodic table, which group does Neon belong to?
A
17
B
19
C
9
D
10
3) Electrons randomly orbit the ________________ of an atom.
A
molecules
B
elements
C
nucleus
D
protons and electrons
4) Most of an atom's mass is concentrated in the
A
nucleus.
B
ions.
C
electrons.
D
orbits.
5) What is the electrical charge on a proton?
A
ionic
B
negative
C
positive
D
neutral
6) What is formed when an atom gives up an electron?
A
a water molecule
B
an ion
C
a compound
D
a new element
7) Which of the following cannot be seen by the naked eye?
A
compounds
B
mixtures
C
atoms
D
elements
8) What is the simplest type of a pure substance?
A
element
B
colloid
C
mixture
D
compound
9) The atomic weight of the atom is composed of the protons and neutrons in the
A
nucleus
B
orbits
C
outer energy level
D
innermost energy level
10) Which substance cannot be broken into smaller parts?
A
carbon dioxide
B
nitric acid
C
phosphorus
D
hydrogen peroxide
*select an answer for all questions
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