Isotopes of helium a thousand times lower than helium-4 (2.17 K). This difference is explained by quantum statistics, since helium-3 atoms are fermions, while helium-4 atoms are bosons, which condense to a superfluid more easily. The most common isotope, , is produced on Earth by alpha decay of heavier radioactive elements; the alpha particles that emerge are fully ionized nuclei. is an unusually stable nucleus because its nucleons are arranged into complete shells. It was also formed in enormous quantities during Big Bang nucleosynthesis. Terrestrial helium consists almost exclusively (99.99986%) of this isotope. Its boiling point of 4.2 K is the lowest of
The Lowest of the Low In November 2015, they released two new songs, "The Kids Are All Wrong" and "In the Blink of an Eye", with new guitarist Brian Macmillan replacing Stanley. In 2017, they released "Do the Right Now", their first album of new material since 2004's "Sordid Fiction". The Lowest of the Low have been cited as a major influence by The Weakerthans, whose leader John K. Samson was previously a member of Propagandhi when the latter covered TLotL's song "Gamble". The Lowest of the Low have actually repaid the favour to The Weakerthans by singing about attending one of their concerts in