According to University of Waterloo research, the half-life of benzene in soil/groundwater is between 10 - 720 days.
0.0001 M/yr or 0.05 M
Rate are like velocites.
Rutherfordium has 104 protons; the isotope with the longest half-life (263Rf) has 159 neutrons.
For elements with no stable isotopes, the mass number of the isotope with the longest half-life is in parentheses.
For elements with no stable isotopes, the mass number of the isotope with the longest half-life is in parentheses.
The mass number of the isotope with the longest half life, Bh-270, is 270.
its bismut - 20 bilion bilion yrs and from isotopes its Selenium SE-82 (130,000,000,000,000,000,000 years or simply 130 quintillion years)
Uranium has the longest half-life element
Yes
absolutely...it's a benzo just like Xanax. The main difference is its long half life. Xanax's half life is about 12 hours while Tranxene's can be as long as 2 days.
I believe it is selenium 82 with a half life of 1.3*10 to the 20 years or 130 quintillion years!
Haldol is a benzo. Benzos tend to stay in your system much longer than other drugs (like dilaudid) because they have a long half life.
The longest-lived isotope currently known is 289Fl with a half-life of ~2.6 s, although there is evidence for a nuclear isomer, 289bFl, with a half-life of ~66 s, that would be one of the longest-lived nuclei in the super-heavy element region.
The most important isotope - Es-253, has a half life of 20,47 days.The longest half life is for the isotope Es-252: 471,7 days.But einsteinium has 19 isotopes and 3 isomers, each with a different half life.
Tungsten 184 has a half life of nearly 9 sextillion years - which is several trillion times the age of the universe.
Ununquadium is still being explored. There are 5 confirmed isotopes, and what looks looks two isomers. The longest half-life appears to be 114289Uuq at 2.6 seconds, and the longest isomer appears to be 114289mUuq at 1.2 minutes.
Klonopin is a benzo They have a long half life. for at least a couple weeks
the longest-lived isotope has lived just 61 ms.
Rutherfordium has 104 protons; the isotope with the longest half-life (263Rf) has 159 neutrons.