Multiple Choice
In a simplified model of the atom, which subatomic particle has a positive charge?
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4. Atoms and Elements
Subatomic Particles (Simplified)
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In simplified atomic models, what is the approximate mass of one neutron?
A
Approximately g (about 1 amu)
B
Approximately g
C
Approximately g (about 1 amu)
D
Approximately g
Verified step by step guidance1
Understand that the problem asks for the approximate mass of one neutron in simplified atomic models, often expressed in grams or atomic mass units (amu).
Recall that the atomic mass unit (amu) is defined based on the mass of a carbon-12 atom, and both protons and neutrons have masses close to 1 amu.
Know that the mass of a neutron is roughly 1 amu, which corresponds to about 1 times 10 to the power of -24 grams in scientific notation.
Compare the given options by their powers of ten to identify which value is closest to the known neutron mass (~1 amu or ~1 × 10^{-24} g).
Conclude that the approximate mass of one neutron is about \$1 \times 10^{-24}$ grams, aligning with the standard atomic mass unit scale.
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