Multiple Choice
Which of the following is a property that neutrons and protons have in common?
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2. Atoms & Elements
Subatomic Particles
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Which subatomic particle has a negative charge and a mass that is approximately 1/1836 amu?
A
Electron
B
Neutron
C
Proton
D
Alpha particle
Verified step by step guidance1
Recall the three main subatomic particles: protons, neutrons, and electrons.
Identify the charge of each particle: protons have a positive charge, neutrons have no charge (neutral), and electrons have a negative charge.
Consider the mass of each particle: protons and neutrons have masses close to 1 atomic mass unit (amu), while electrons have a much smaller mass, approximately 1/1836 of an amu.
Match the particle with a negative charge and a mass about 1/1836 amu, which corresponds to the electron.
Conclude that the subatomic particle described is the electron.
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