Chromium-51

Naturally occurring chromium (₂₄Cr) is composed of four stable isotopes; ⁵⁰Cr, ⁵²Cr, ⁵³Cr, and ⁵⁴Cr with ⁵²Cr being the most abundant (83.789% natural abundance). ⁵⁰Cr is suspected of decaying by β⁺β⁺ to ⁵⁰Ti with a half-life of (more than) 1.8×10¹⁷ years. Twenty-two radioisotopes, all of which are entirely synthetic, have been characterized with the most stable being ⁵¹Cr with a half-life of 27.7 days. All of the remaining radioactive isotopes have half-lives that are less than 24 hours.

Chromium-51 is a manmade isotope of chromium used in medicine as a radioisotopic tracer.

Spectrum (Fullscreen)

10 minute measurement with a High Purity Germanium (HPGe) radiation detector.

Metadata

Isotope:	Chromium
Mass number:	51
Atomic number:	24
Neutron number:	27
…	…

Sources and Further Read

• https://en.wikipedia.org/wiki/Chromium#Isotopes
• https://en.wikipedia.org/wiki/Isotopes_of_chromium