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Which of the following descriptions of a subatomic particle is correct?
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2. Atoms & Elements
Subatomic Particles
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Which subatomic particle orbits outside the atomic nucleus and carries a negative electrical charge?
A
Positron
B
Proton
C
Neutron
D
Electron
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Identify the subatomic particles mentioned in the problem: positron, proton, neutron, and electron.
Recall the basic structure of an atom: it consists of a nucleus containing protons and neutrons, with electrons orbiting around the nucleus.
Understand the charge of each subatomic particle: protons have a positive charge, neutrons have no charge, and electrons have a negative charge.
Recognize that electrons are the subatomic particles that orbit outside the nucleus and carry a negative charge.
Conclude that the correct answer is 'Electron' based on the characteristics of the subatomic particles.
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