Tavola periodica degli elementi
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N

Glossary
Neutron | NMR | Nucleon

Neutron
Neutron is an elementary particle on spin 1/2 and zero charge. The free neutron has a mean lifetime of 887 seconds. Neutrons and protons are the constituents of the nucleus.

NMR
Nuclear magnetic resonance (NMR) is a widely used technique in which the resonant absorption of radiofrequency radiation by magnetic nuclei in a magnetic field is measured. The results give important information on the local environment of each nucleus.

Nucleon
Nucleon is a collective term for the proton and neutron.

 

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Glossary of chemical terms Tavola periodica degli elementi Calculating the molecular weight

Last modified: 01.02.2002
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