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Which of the following is the smallest particle of an element that retains the chemical properties of that element?
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2. Atoms & Elements
The Atom
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In an atom, where are protons located?
A
In the valence shell
B
In the electron cloud
C
In the outermost energy level
D
In the nucleus
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Recall the basic structure of an atom, which consists of a nucleus and an electron cloud surrounding it.
Understand that protons are positively charged particles found within the nucleus of the atom.
Recognize that the valence shell and outermost energy level refer to regions where electrons are located, not protons.
Know that the electron cloud is the area around the nucleus where electrons move, so protons are not found there.
Conclude that protons are located in the nucleus, which is the dense central part of the atom.
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