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Which subatomic particle determines the identity of an atom (i.e., which element it is)?
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4. Atoms and Elements
Subatomic Particles (Simplified)
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In a neutral atom, which subatomic particle carries a negative charge?
A
Proton
B
Neutron
C
Nucleus
D
Electron
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Recall the three main subatomic particles in an atom: protons, neutrons, and electrons.
Understand the charge of each particle: protons carry a positive charge, neutrons have no charge (neutral), and electrons carry a negative charge.
Recognize that the nucleus of an atom contains protons and neutrons, but not electrons.
Since the question asks for the subatomic particle with a negative charge, identify the electron as the particle that carries this charge.
Therefore, in a neutral atom, the electron is the subatomic particle that carries a negative charge.
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