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How many protons are present in an atom of bismuth?
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2. Atoms & Elements
The Atom
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Which subatomic particles move rapidly around the nucleus of an atom?
A
Neutrons
B
Electrons
C
Protons
D
Quarks
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Recall the structure of an atom, which consists of a nucleus and particles surrounding it.
Identify the particles located inside the nucleus: protons and neutrons are found in the nucleus.
Understand that electrons are the subatomic particles that move rapidly around the nucleus in regions called electron clouds or orbitals.
Recognize that quarks are fundamental particles that make up protons and neutrons, not particles that orbit the nucleus.
Conclude that the subatomic particles moving rapidly around the nucleus are electrons.
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