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.
The last time Congress raised the federal minimum wage was in 2007, when President George W. Bush reluctantly signed the bill passed by the Democratic Congress to raise the federal minimum wage from $5.15 an hour (where it had stood for ten years) to $7.25 an hour (phased in over several years).s soon as President Barack Obama called on Congress to raise the minimum wage to $9 an hour in his State of the Union address last week, you could see Speaker John Boehner, seated behind the president, uttering his religious mantra: Job killer..