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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
contains hundreds of protons and neutrons per atom.
D
combines with oxygen in endothermic reactions.
2) According to the periodic table, which group does Neon belong to?
A
9
B
19
C
17
D
10
3) Electrons randomly orbit the ________________ of an atom.
A
protons and electrons
B
nucleus
C
elements
D
molecules
4) Most of an atom's mass is concentrated in the
A
nucleus.
B
orbits.
C
electrons.
D
ions.
5) What is the electrical charge on a proton?
A
negative
B
positive
C
ionic
D
neutral
6) What is formed when an atom gives up an electron?
A
an ion
B
a compound
C
a water molecule
D
a new element
7) Which of the following cannot be seen by the naked eye?
A
mixtures
B
elements
C
atoms
D
compounds
8) What is the simplest type of a pure substance?
A
compound
B
colloid
C
element
D
mixture
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
phosphorus
B
nitric acid
C
hydrogen peroxide
D
carbon dioxide
*select an answer for all questions
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