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WorksheetsScience Dudes
Total questions: 18
Worksheet time: 3mins
Name
Class
Date
1.
Who was the first person to mention atoms in his research?
a)
Avogadro
b)
Democritus
c)
Dalton
d)
Rutherford
2.
Who discovered the nucleus using gold foil?
a)
Milliken
b)
Heisenberg
c)
Bohr
d)
Rutherford
3.
Who had the first 4 part atomic theory about combining atoms in 1808?
a)
Heisenburg
b)
Rutherford
c)
Dalton
d)
Bohr
4.
Who discovered the electron's charge by using the oil drop experiment?
a)
Milliken
b)
Bohr
c)
Debrogile
d)
Thompson
5.
Who discovered the electron (NOT its charge) using the cathode ray tube?
a)
Thompson
b)
Milliken
c)
Heisenberg
d)
Dalton
6.
What is the current model of the atom we use today?
a)
Plum Pudding
b)
Planetary
c)
Quantum mechanical
d)
Nuclear model
7.
Dalton Used the solid sphere model.
a)
True
b)
False
8.
Who Proposed that electrons can jump between energy levels?
a)
Plank
b)
Bohr
c)
DeBrogile
d)
Milliken
9.
The plum pudding model included the charges of the electrons.
a)
True
b)
False
10.
Around what time did Democritus discover the atom?
a)
1000 B.C.
b)
400 B.C.
c)
1919
d)
1543
11.
Who developed the wave theory?
a)
DeBrogile
b)
Heisenberg
c)
Thompson
d)
Dalton
12.
Who came up with the first periodic table using atomic mass?
a)
Mendeleev
b)
Dalton
c)
Planck
d)
Democritus
13.
What does the Planetary model relate to?
a)
Solar system
b)
Electrons Energy Levels
c)
Orbits of Electrons
d)
all of the above
14.
Who discovered that electrons orbit on rings?
a)
Thompson
b)
Democritus
c)
Bohr
d)
Dalton
15.
Who created the uncertainty principle?
a)
Heisenberg
b)
DeBrogile
c)
Dalton
d)
Bohr
16.
Who determined that atoms are mostly empty space?
a)
Thompson
b)
Rutherford
c)
DeBrogile
d)
Heisenberg
17.
Who worked on the current model of the atom today a.k.a quantum mechanical?
a)
Heisenberg
b)
Heisenberg & DeBroglie
c)
Rutherford
d)
DeBrogile
18.
What did the uncertainty principle state was unknown?
a)
Position of electron
b)
Energy level of electron
c)
Speed of electron
d)
Both position and speed of electron
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