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WorksheetsAtomic History Review
Total questions: 16
Worksheet time: 13mins
Name
Class
Date
1.
Which of these was not discussed in Dalton's atomic theory?
a)
molecules
b)
compounds
c)
atoms
d)
elements
2.
Which letter represents a proton?
a)
A
b)
B
c)
C
d)
D
3.
Which letter represents a neutron?
a)
A
b)
B
c)
C
d)
D
4.
Which letter represents an electron?
a)
A
b)
B
c)
C
d)
D
5.
Which letter represents the nucleus?
a)
A
b)
B
c)
D
d)
E
6.
Which letter represents the electron cloud?
a)
A
b)
B
c)
D
d)
E
7.
Using your Periodic Table, identify the element that is represented by this model.
a)
Beryllium
b)
Oxygen
c)
Fluorine
d)
Boron
8.
What is the subatomic particle for box B?
a)
proton
b)
neutron
c)
electron
9.
What is the subatomic particle for box C?
a)
proton
b)
neutron
c)
electron
10.
The subatomic particle that determines the identity of an element.
a)
neutron
b)
proton
c)
electron
d)
outer shell
11.
Rutherford’s experiment determined that the nucleus of an atom is tiny, dense and ______ charged.
a)
neutrally
b)
negatively
c)
positively
12.
Who is credited with developing the atomic theory? (Sometimes called the father of atomic theory)
a)
John Dalton
b)
J. J. Thomson
c)
Earnest Rutherford
d)
Niels Bohr
13.
What does the Bohr model suggest?
a)
Atoms are small, hard, indivisible objects.
b)
That protons in the nucleus are attracted to electrons in the electron clouds.
c)
That electrons travel around the nucleus of an atom in orbits or definite paths.
14.
Who discovered the electron?
a)
Dalton
b)
Democritus
c)
Rutherford
d)
Thomspon
15.
Democritus believed that the smallest particles, were atomos, the Greek word for
a)
small
b)
uncut or indivisible
c)
basic
16.
Which particle did James Chadwick discover?
a)
Neutron
b)
Proton
c)
Electron
d)
Electron Cloud
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