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Chapter 5
Explorer Quizzes
Explorer Quiz 2
Explorer Quiz 2
This activity contains 12 questions.
Who proposed the plum-pudding model of the atom?
William Crookes
J. J. Thomson
James Chadwick
Robert Millikan
James Chadwick received the Nobel Prize in physics in 1935 for what discovery?
neutron
proton
electron
atomic nucleus
What are isotopes?
atoms of the same element that have a different number of protons
atoms of the same element that have a different number of electrons
atoms that have different atomic numbers
atoms of the same element that have a different number of neutrons
Use the periodic table in the front of your book to determine which of the following elements is radioactive and unstable.
barium, Ba
arsenic, As
tungsten, W
radon, Rn
Which of the following forms of radiant energy has the highest energy?
infrared (frequency = 2.9 x 10
14
s
-1
)
orange light (frequency = 4.8 x 10
14
s
-1
)
CB radio (frequency = 2.5 x 10
7
s
-1
)
radar (frequency = 8.6 x 10
9
s
-1
)
Which of the following is
not
an example of radiant energy?
dental x-rays
infrared radiation from a TV remote
neon advertising lights
These are all examples of radiant energy.
Which statement was
not
part of Niels Bohr's planetary model of the atom?
Electrons can only be found in specific energy levels.
Electrons orbit at a fixed distance around the atomic nucleus.
A definite energy is associated with each electron orbit.
Light is emitted in small bundles called photons.
What is the maximum number of electrons in a 3s sublevel?
3
6
18
2
What is the maximum number of electrons in the first energy level?
8
1
18
2
Which element has the following electron configuration: 1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
3d
10
4p
4
?
sulfur, S
selenium, Se
chlorine, Cl
titanium, Ti
What is the electron configuration for lithium?
1s
1
2s
1
3s
1
1s
2
2s
1
2s
3
1s
2
1p
1
What is the general shape of a
p
orbital?
football-shaped
egg-shaped
spherical
dumbbell-shaped
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