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Which of the following is considered the smallest basic unit of matter?
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2. Atoms & Elements
The Atom
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Which of the following particles are found in the nucleus of an atom?
A
Electrons and protons
B
Protons and neutrons
C
Only protons
D
Neutrons and electrons
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Recall the basic structure of an atom, which consists of a nucleus and an electron cloud surrounding it.
Understand that the nucleus contains particles called nucleons, which include protons and neutrons.
Recognize that electrons are found outside the nucleus, in the electron cloud or orbitals.
Identify that protons carry a positive charge, neutrons are neutral, and electrons carry a negative charge.
Conclude that the particles found in the nucleus are protons and neutrons, not electrons.
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