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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
combines with oxygen in endothermic reactions.
B
must be handled with great care or it will react with air.
C
contains hundreds of protons and neutrons per atom.
D
has a unique set of characteristics based on atomic number.
2) According to the periodic table, which group does Neon belong to?
A
10
B
9
C
19
D
17
3) Electrons randomly orbit the ________________ of an atom.
A
nucleus
B
molecules
C
protons and electrons
D
elements
4) Most of an atom's mass is concentrated in the
A
electrons.
B
nucleus.
C
ions.
D
orbits.
5) What is the electrical charge on a proton?
A
negative
B
neutral
C
positive
D
ionic
6) What is formed when an atom gives up an electron?
A
a water molecule
B
a new element
C
an ion
D
a compound
7) Which of the following cannot be seen by the naked eye?
A
atoms
B
elements
C
mixtures
D
compounds
8) What is the simplest type of a pure substance?
A
compound
B
mixture
C
element
D
colloid
9) The atomic weight of the atom is composed of the protons and neutrons in the
A
outer energy level
B
orbits
C
innermost energy level
D
nucleus
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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