Technetium-99m Gamma Decay

^99mTc → ⁹⁹Tc + γ

Visão geral

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.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Technetium Tc	1	(s)

Exemplo do cotidiano

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

Importância industrial

O Tc-99m representa mais de 80% de todos os procedimentos de medicina nuclear a nível mundial, utilizado em imagiologia óssea, cardíaca, cerebral, pulmonar e renal.

Propriedades

Tipo: Nuclear
Reversível: Não
Energia: Exotérmico
ΔH: -14000000,0 kJ/mol

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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.