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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
electrons and neutrons
B
protons and bigtons
C
protons and neutrons
D
protons and electrons
2) Where is most of an atoms mass?
A
in the electron cloud
B
in quarks
C
In the nucleus
D
outside the nucleus
3) Approximately how many known elements are there?
A
1000
B
50
C
100
D
10
4) What 2 subatomic particles are equal in an atom?
A
protons and neutrons
B
electrons and positrons
C
electrons and neutrons
D
protons and electrons
5) Who named the atom?
A
Aristotle
B
Galileo
C
Democritus
D
Sheldon
6) Where is most of the volume of the atom?
A
between neutrons
B
electron cloud
C
nucleus
D
inside protons
7) Number of electrons that can be held in the first 3 energy levels
A
2, 8, 18
B
4, 6, 18
C
9, 14, 68
D
1, 2, 3,
8) The periodic table is arranged by
A
atomic masses
B
symbols
C
alphabetically
D
atomic numbers
9) Atomic mass minus protons equals
A
molecules
B
electrons
C
neutrons
D
atomic number
10) If potassium has an atomic number of 19 and an atomic mass of 39.09, how many neutrons does it have?
A
19
B
39
C
20
D
.09
*select an answer for all questions
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