Which of the following systems will show electron spin resonance (ESR) spectrum? (i) H (ii) (iii)
(iv)
(v)
(vi)
Electron spin resonance is observed only for systems that contain at least one unpaired electron. A hydrogen atom has a single electron in the 1s orbital, which is unpaired, so it will show ______ ___ __________ ________ __________ ______ _________ __________ __________ ________ _______ ________.
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