NMR Basics
What does NMR stand for?
Nuclear Magnetic Resonance
What kind of wave flips the spin of an atom in NMR?
Radio Wave
True or False: All atoms have nuclear spin.
False
What medical imaging technique is based on NMR?
MRI
What does “resonance” mean in NMR?
Energy from radio waves matches the spin energy
What two types of waves or fields does NMR use?
Magnetic fields and radio waves
What happens when the atom goes back to normal after being excited?
It releases a signal
True or False: Spin is a quantum property of the nucleus.
True
True or False: NMR can only be used in labs, not hospitals
What is the full name of the signal released during NMR?
Free induction decay / NMR signal
NMR is mainly used in which subject: Biology, Chemistry, or History?
Chemistry
What is used to align the spins of atoms?
A magnetic field
Which isotope of hydrogen is used in most NMR studies?
Hydrogen-1
What does MRI stand for?
Magnetic Resonance Imaging
What kind of spectrum is produced in NMR?
NMR spectrum
What common atom is most used in NMR?
Hydrogen-1
What increases when a stronger magnetic field is used?
Signal clarity/resolution
What happens to spin in a magnetic field?
It aligns with or against the field
In what industry might NMR be used to check the purity of drugs?
Pharmaceutical/Medicine
What is chemical shift measured in?
Parts per million / ppm
What must an atom have to be NMR active?
Nuclear Spin
What is the term for the energy match that causes the spin to flip?
Resonance
What kind of nucleus does not give an NMR signal?
One with spin = 0
Name one thing NMR can help identify in a chemical compound.
Molecular structure / bonding / hydrogen locations
What part of the atom gives rise to spin?
The nucleus