Although bismuth-209 is now known to be unstable, it has classically been considered to be a stable isotope because it has a half-life of over 1.9Ã10 19 years, which is more than a billion (1000 million) times the age of the universe.ismuth (Bi) has no stable isotopes, but does have one very long-lived isotope; thus, the standard atomic mass can be given as 208.9803987(16) u.
Following through on his State of the Union pledge, President Barack Obama has signed an Executive Order raising the minimum wage for workers on new federal contracts to $10.10 per hour. The rate increase will apply only to solicitations and contracts issued on or after January 1, 2015.
Washington D.C. followed suit, enacting a law to raise the minimum wage in the District to $15 per hour by July 1, 2020. On April 4, California Governor Jerry Brown signed Senate Bill 3 into law. The new law increases the minimum wage to $15 per hour by Jan. 1, 2022, for employers with 26 or more employees. For employers with 25 or fewer employees the minimum wage will reach $15 per hour by Jan. 1, 2023. Increases may be paused by the governor if certain economic or budgetary conditions exist.