Beta Decay of Strontium-90

⁹⁰Sr → ⁹⁰Y + e⁻ + ν̄_e

Aperçu

Strontium-90 undergoes beta decay to yttrium-90 with a half-life of 28.8 years. Sr-90 is a major fission product and is biologically dangerous because it mimics calcium and concentrates in bones. Nuclear fallout from atmospheric testing deposited Sr-90 worldwide during the 1950s-60s.

Participants

Rôle	Substance	Coefficient	État
Réactif	Strontium Sr	1	(s)
Produit	Yttrium Y	1	(s)

Exemple du quotidien

Sr-90 was detected in children's milk teeth during the nuclear testing era, leading to the 1963 Nuclear Test Ban Treaty.

Importance industrielle

Sr-90 is used in radioisotope thermoelectric generators (RTGs), in industrial thickness gauges, and its daughter Y-90 is used in cancer therapy.

Propriétés

Type: Nuclear
Réversible: Non
Énergie: Exothermique
ΔH: -55000000,0 kJ/mol

Réactions associées

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 Alpha Decay of Polonium-210 Americium-241 Alpha Decay Beta Decay of Cobalt-60 Plutonium-239 Fission Electron Capture by Beryllium-7

Frequently Asked Questions

What is the equation for Beta Decay of Strontium-90?

The balanced equation is: ⁹⁰Sr → ⁹⁰Y + e⁻ + ν̄ₑ.

What type of reaction is Beta Decay of Strontium-90?

Beta Decay of Strontium-90 is a nuclear reaction.

Is Beta Decay of Strontium-90 exothermic or endothermic?

Beta Decay of Strontium-90 is exothermic (releases energy). The enthalpy change (ΔH) is -55000000.0 kJ/mol.