### neutron

• n. [核] 中子
CET6+ GRE TOEFL CET6

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neutron 中子

neutron (n.)
"electrically neuter particle of the atom," 1921, coined by U.S. chemist William D. Harkins (1873-1951) from neutral (adj.) + -on. First record of neutron bomb is from 1960. Neutron star attested from 1934, originally hypothetical; so called because it would be composed of neutrons.
1. A neutron star has a gravitational field strong enough to generate X-rays.

2. A neutron is simply a neutral particle in the nucleus of an atom.

3. The dark star in Nova Muscae 1991 is a black hole rather than a neutron star.

4. Neutron stars are the second exhibit in the gallery of stellar corpses.

5. A neutron has no appreciable electromagnetic interaction with nuclei or with electrons.