Zs (311 Ta): The entire lifetime of Brahma in Hindu mythology. 1024 yottasecond Ys 600 Ys (2×1019 a): The radioactive half-life of bismuth-209 by alpha...

This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days...

Zs zettasecond 31.7 trillion years 10−24 s ys yoctosecond 1024 s Ys yottasecond 31.7 quadrillion years 10−27 s rs rontosecond 1027 s Rs ronnasecond 31...

of Jamaica Yoctosecond, or ys, a unit of time equal to 10−24 seconds Yottasecond, or Ys, a unit of time equal to 1024 seconds A US Navy hull classification...

Calvinist movement ys – (s) Yoctosecond yS – (s) Yoctosiemens Ys – (s) Yottasecond YS – (s) Yottasiemens YSA (i) Young Single Adult, a designation used...