Which statement about technetium production is correct in modern medical supply chains?

Tc-99m is typically produced directly in gamma-ray lasers

Tc-99m is eluted from Mo-99/Tc-99m generator systems where Mo-99 is produced in reactors

Tc-99m is abundant in natural minerals and mined commercially

Tc-99m is produced exclusively by cosmic-ray spallation

Which pair of scientists is credited with the discovery of technetium in 1937?

Emilio Segrè and Carlo Perrier

Dmitri Mendeleev and Lothar Meyer

Single-photon emission computed tomography (SPECT)

Magnetic resonance imaging (MRI)

Positron emission tomography (PET)

Isomeric transition (gamma emission)

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01Approximately what is the half-life of Tc-99m that makes it useful for medical imaging?
02Which statement about technetium production is correct in modern medical supply chains?
03Technetium is notable for being the lightest element that has what characteristic?
04The common clinical supply of Tc-99m is generated from a parent radioisotope in a clinical 'generator'. What is the parent isotope?
05Which pair of scientists is credited with the discovery of technetium in 1937?
06What imaging modality most commonly uses Tc-99m labeled radiopharmaceuticals?
07What is the chemical symbol for technetium?
08Which technetium isotope is the metastable isomer widely used in medical diagnostic imaging?
09Tc-99m primarily decays to Tc-99 by which process that emits gamma rays suitable for imaging?
10What is the atomic number of technetium?