Question

The nuclei to exhibit NMR Phenomenon which of the following is required criteria *

1 point

Atoms or group must have dipole moment

Spin quantum number (I) must greater than Zero

atoms must have lone pair of electron

Spin quantum number (I) must less than Zero​

Answer 1

Explanation:

atoms are made up cells only my name

Answer 2

Required criteria for the nuclei to exhibit NMR Phenomenon is atoms must have lone pair of electrons.

Explanation:

• NMR spectroscopy is based on the principle that the nuclei have a spin and all nuclei are electrically charged.
• If external magnetic field is applied, there is an energy transfer is between the base energy to a higher energy level which creates a single energy gap.
• The nuclei present will have an odd number of protons for e.g $1H, 2H, 14N, 19F, 31P$ and nuclei with an odd number of neutrons e.g $13C$show the magnetic properties which are required for NMR.
• Nuclei with even number of protons and neutrons do not have the required magnetic properties. e.g $12C and 16O$