Worksheets2.2 The Development of Atomic Model
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
He discovered the neutron in the nucleus and completed the current atomic model.
a)
J.J. Thomson
b)
Ernest Rutherford
c)
Niels Bohr
d)
James CHadwick
2.
He found that atoms have smaller parts and found negative electrons that he theorized were surrounded in a sphere of positive charges
a)
J.J. Thomson
b)
Ernest Rutherford
c)
Niels Bohr
d)
James Chadwick
3.
He found the positively charged protons in the nucleus and said that electrons moved around the nucleus
a)
J.J. Thomson
b)
Ernest Rutherford
c)
Niels Bohr
d)
James Chadwick
4.
He found that electrons have specific amounts of energy and move in specific orbits around the nucleus, like planets orbiting the sun.
a)
J.J. Thomson
b)
Ernest Rutherford
c)
Niels Bohr
d)
James Chadwick
5.
Which of the following was not part of John Dalton's theory of an atom?
a)
Matter can be created and destroyed
b)
All atoms of the same element are exactly alike
c)
Every compound is composed of atoms of different elements in a specific ratio
d)
All elements are composed of atoms that can not be divided
6.
According to Ernest Rutherford, an atom is made of mostly....
a)
empty space
b)
electrons
c)
the nucleus
d)
protons
7.
The atomic particle with no charge is the...
a)
proton
b)
neutron
c)
electron
d)
nucleus
8.
The atomic particle with a positive charge is the...
a)
proton
b)
neutron
c)
electron
d)
nucleus
9.
The atomic particle with a negative charge is the...
a)
proton
b)
neutron
c)
electron
d)
nucleus
10.
The smallest part of the element with the properties of the element is the...
a)
electron
b)
quark
c)
atom
d)
proton
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