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Worksheetsgrade 9 VIS physics - rutherfords and nuclear stability
Total questions: 20
Worksheet time: 12mins
Name
Class
Date
1.
Which scientist became known as "the father of the nuclear age"?
a)
J. J. Thomson
b)
John Dalton
c)
Ernest Rutherford
d)
Niels Bohr
2.
What particle was used in the gold foil experiment?
a)
Beta Particle
b)
Alpha particle
c)
Gamma ray
3.
Most of the alpha particles went straight through the gold foil. This suggested that....
a)
There is no interference between alpha and gold.
b)
Most of the atom is made up of empty space.
c)
The alpha particles were very tiny.
d)
None of the above
4.
Some of the alpha particles fired at the gold foil were deflected at angles. This was due to...
a)
reflection of the alpha source when it it the fluorescent screen.
b)
The alpha particles hitting the gold nucleus.
c)
Repulsion forces between the positively charged nucleus and the positively charged alpha particles.
d)
A mis-firing of the alpha source
5.
What did the Plum pudding model suggest about the structure of atoms?
a)
That neutrons and electrons were arranged in a sphere.
b)
that is was a sphere of positive charge throughout which the electrons were distributed
c)
That an atom was filled with neutrons, protons and a sphere of negative charge.
d)
That neutrons, protons and electrons were distributed throughout a sphere.
6.
All atoms consist of mostly empty space.
a)
True
b)
False
7.
Almost all of the mass of an atom is found in what part?
a)
The electron cloud
b)
The nucleus
c)
The protons
d)
The charge
8.
Rutherford’s gold foil scattering experiment indicated that
a)
the nucleus of an atom occupies most of an atom’s volume
b)
positive charges are dispersed throughout the atom.
c)
positive charges are concentrated in a very small core at the atom’s center
d)
protons and neutrons are located in the nucleus.
9.
Subatomic particles with a negative charge
a)
Electrons
b)
Neutrons
c)
Protons
d)
Quarks
10.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
11.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
12.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus
d)
Electrons
13.
Atoms of the same element with a different number of neutrons
a)
Ion
b)
Gluons
c)
Isotope
d)
Quarks
14.
What is the atomic number?
a)
35
b)
18
c)
17
d)
52
15.
How many protons and electrons does this element have?
a)
35
b)
18
c)
17
d)
52
16.
How many neutrons does calcium have?
a)
20
b)
40
c)
60
d)
0
17.
What is the atomic mass of Arsenic?
a)
33
b)
107
c)
75
18.
What is the atomic mass of Neon?
a)
10
b)
20
c)
30
19.
How many neutrons does Chlorine have?
a)
18
b)
17
c)
35
d)
52
20.
_____________ is the force that binds protons together in the nucleus of an atom.
a)
Gravity
b)
Electromagnetism
c)
Strong Nuclear
d)
Weak Nuclear
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