Technetium-99m Gamma Decay

99mTc → 99Tc + γ

Übersicht

Technetium-99m (metastable) releases a 140 keV gamma ray to reach the ground state Tc-99 with a half-life of 6.01 hours. This isomeric transition emits no particulate radiation. The 140 keV gamma energy is ideal for gamma camera detection, and the 6-hour half-life allows sufficient imaging time with rapid decay.

Teilnehmer

Rolle Substanz Koeffizient Zustand
Reaktant Technetium Tc 1 (s)

Alltägliches Beispiel

Tc-99m is used in about 30 million medical diagnostic scans worldwide each year, making it the most widely used medical radioisotope.

Industrielle Bedeutung

Tc-99m accounts for over 80% of all nuclear medicine procedures globally, used for bone, heart, brain, lung, and kidney imaging.

Eigenschaften

Typ
Nuclear
Reversibel
Nein
Energie
Exotherm
ΔH
-14000000,0 kJ/mol

Verwandte Reaktionen

Alpha Decay of Radium-226 Alpha Decay of Radon-222 Alpha Decay of Thorium-232 Neutron Capture by Uranium-238 Beta Decay of Iodine-131 Beta Decay of Strontium-90 Alpha Decay of Polonium-210 Americium-241 Alpha Decay Beta Decay of Cobalt-60 Electron Capture by Beryllium-7

Frequently Asked Questions

What is the equation for Technetium-99m Gamma Decay?
The balanced equation is: ⁹⁹ᵐTc → ⁹⁹Tc + γ.
What type of reaction is Technetium-99m Gamma Decay?
Technetium-99m Gamma Decay is a nuclear reaction.
Is Technetium-99m Gamma Decay exothermic or endothermic?
Technetium-99m Gamma Decay is exothermic (releases energy). The enthalpy change (ΔH) is -14000000.0 kJ/mol.