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Atomic Unit Test
Atomic Unit Test
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An atomic unit test on atomic theory, periodic table.
Flashcards
14 cards
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Questions
14
Answers
1
The center of the atom is
neutron
electron
nucleus
proton
2
In what family is Argon (Ar) found in?
Halogens
Alkaline Earth Metals
Noble Gases
Transition Metals
3
How many electrons does a neutral/stable Potassium (K) atom have?
20
19
21
18
4
Atomic Theory is the theory of what?
the evolution of science
the evolution of the atom
5
How many families is the Periodic Table organized into?
3
7
1
5
6
How many valence electrons does Helium (He) have?
4
2
1
3
7
What is the atomic number of Bromine (Br)?
30
37
33
35
8
What is the atomic mass of Aluminum (Al)?
24.305
28.085
22.990
26.982
9
How many categories is the Periodic Table organized into?
2
4
1
3
10
How many neutrons are in an atom of Beryllium (Be)?
9.01
5
4
11
How many protons are in Gallium (Ga)?
78
34
31
69
12
The larger number under the elements symbol represent the
atomic mass
# of electrons
# of protons
atomic number
13
In what family is Chlorine (Cl) found?
Halogens
Noble Gases
Transition Metals
Alkaline Earth Metals
14
How many valence electrons are found in the Alkaline Earth Metals?
3
2
4
1
