Chemistry Concepts and Applications

Section 2: Electrons in Atoms

Self Check Quizzes

1
How is the ladder like the energy levels in an atom?

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A)Both are made of matter.
B)The rungs of the ladder are the same distance apart as the energy levels of an atom.
C)Your foot can't rest in between rungs.
D)Both use electric repulsion.
2
How many energy levels are shown in this electron cloud model of an atom?

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A)4
B)3
C)2
D)1
3
The distance between corresponding points on two consecutive waves is called __________.

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A)amplitude
B)frequency
C)speed
D)wavelength
4
This color of light has the highest frequency of the visible electomagnetic spectrum.

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A)blue
B)green
C)red
D)violet
5
An element's emission spectrum is thought to be produced when electrons move from __________.
A)higher to lower energy levels
B)inside the atom to outside the atom
C)lower to higher energy levels
D)the nucleus to energy levels
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