Answer
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Step 1:: Understand the problem
We are asked to find the mass of a neutron.
Step 2:: Recall relevant information
The mass of a neutron is a known physical constant. Its value can be found in various scientific references.
Step 3:: Find the mass of a neutron
According to the National Institute of Standards and Technology (NIST), the mass of a neutron is approximately 1.674927471(21) × 10⁻²⁷ kg [1]. The number in parentheses represents the uncertainty in the last two digits of the given value.
Final Answer
The mass of a neutron is approximately 1.674927471(21) × 10⁻²⁷ kg. References: [1] https://physics.nist.gov/cgi-bin/cuu/Value?mne|search_for=neutron+mass
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