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Periodic Table
Test Description: No
Instructions: Answer all questions to get your test result.
1) Which subatomic particles are found in the nucleus of the an atom?
A
protons and bigtons
B
electrons and neutrons
C
protons and neutrons
D
protons and electrons
2) Where is most of an atoms mass?
A
in the electron cloud
B
In the nucleus
C
in quarks
D
outside the nucleus
3) Approximately how many known elements are there?
A
100
B
10
C
1000
D
50
4) What 2 subatomic particles are equal in an atom?
A
protons and neutrons
B
protons and electrons
C
electrons and positrons
D
electrons and neutrons
5) Who named the atom?
A
Democritus
B
Aristotle
C
Sheldon
D
Galileo
6) Where is most of the volume of the atom?
A
electron cloud
B
inside protons
C
between neutrons
D
nucleus
7) Number of electrons that can be held in the first 3 energy levels
A
9, 14, 68
B
2, 8, 18
C
1, 2, 3,
D
4, 6, 18
8) The periodic table is arranged by
A
atomic numbers
B
symbols
C
atomic masses
D
alphabetically
9) Atomic mass minus protons equals
A
atomic number
B
molecules
C
neutrons
D
electrons
10) If potassium has an atomic number of 19 and an atomic mass of 39.09, how many neutrons does it have?
A
20
B
19
C
39
D
.09
*select an answer for all questions
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