All of the elements have some isotopes that are radioactive ( radioisotopes ), although not all of these radioisotopes occur naturally.

All other radioisotopes have ground-state half lives not greater than 1. 117 days, and most have half lives under 3 hours.

Another 30 artificial radioisotopes of tungsten have been characterized, the most stable of which are < sup > 181 </ sup > W with a half-life of 121. 2 days, < sup > 185 </ sup > W with a half-life of 75. 1 days, < sup > 188 </ sup > W with a half-life of 69. 4 days, < sup > 178 </ sup > W with a half-life of 21. 6 days, and < sup > 187 </ sup > W with a half-life of 23. 72 h. All of the remaining radioactive isotopes have half-lives of less than 3 hours, and most of these have half-lives below 8 minutes.

All radioisotopes contained in the waste have a half-life — the time it takes for any radionuclide to lose half of its radioactivity — and eventually all radioactive waste decays into non-radioactive elements ( i. e., stable isotopes ).

All radioisotopes are unstable isotopes of elements — undergo nuclear decay and emit some form of radiation.

All three isotopes are radioactive, creating radioisotopes, with the most abundant and stable being uranium-238 with a half-life of 4. 4683 years ( close to the age of the Earth

All other radioisotopes have half-lives not greater than 1. 117 days in their ground states ( although the metastable < sup > 166m </ sup > Ho has a half-life of about 1, 200 years ), and most have half-lives under 3 hours.

All of the remaining radioisotopes have half-lives that are less than two days, and the majority of these have half-lives that are less than 48 seconds.

All other iodine radioisotopes have half-lives less than 60 days, and four of these are used as tracers and therapeutic agents in medicine.

All other radioisotopes have half-lives less than a year.

All other radioisotopes have half-lives less than a day.

All other radioisotopes have half-lives less than a day.

All of the other radioisotopes of krypton have half-lives of less that one day, except for krypton-79, which has a half-life of about 35. 0 hours.

Fourteen radioisotopes have been characterized, with the most stable being < sup > 15 </ sup > O with a half-life of 122. 24 s and < sup > 14 </ sup > O with a half-life of 70. 606 s. All of the remaining radioactive isotopes have half-lives that are less than 27 s and the majority of these have half-lives that are less than 83 milliseconds ( ms ).

All of these radioisotopes are short-lived, with the longest-lived one being nitrogen-13 with a half-life of 9. 965 minutes.

All other radioisotopes have half-lives under 20 seconds, most less than 200 milliseconds.

14 radioisotopes have been discovered, with mass numbers from 6 to 21, all with short half-lives, the longest being that of < sup > 8 </ sup > B, with a half-life of only 770 milliseconds ( ms ) and < sup > 12 </ sup > B with a half-life of 20. 2 ms. All other isotopes have half-lives shorter than 17. 35 ms, with the least stable isotope being < sup > 7 </ sup > B, with a half-life of 150 yoctoseconds ( ys ).

All other radioisotopes have half-lives under 13. 85 seconds, most under 20 milliseconds.

All radioisotopes are short-lived, the longest-lived being < sup > 6 </ sup > He with a half-life of 806. 7 milliseconds.

All the doors were open at this hour except one, and it was toward this that Stevens made his way with Russ close at his shoulder.

All the drivers knew about the plates and they also knew about the big floppy straw hat with shredded edges, the kind natives in travel ads wear when they are out joyfully chopping cane.

All can be connected with the gold circuit from their homes.

All seven combined ardent devotion to the cause of revolution with a profound respect for legality.

All sought the fruition of that nationalism in a Federal Government with substantial powers.

All orders originate with the officer of highest rank and terminate with action of the men in the ranks.

All we want from Dr. Huxley's statement is the feeling that this is an open world, in the view of the best scientific opinion, with practically no directional commitments as to what may happen next, and no important confinements with respect to what may be possible.

All the dogs would dash to get on the elevator with the President and go to the dining room.

All this remembering took place the other night when I had supper with the Ziegfeld Girls at the Beverly Hills Club.

He and other Soviet leaders responsible for the document were proud of having brought forward some new formulas, such as the early replacement of the dictatorship of the proletariat by an `` All People's State '', and also of having laid down the lines for a much greater `` democratization '' of the whole hierarchy of Soviets, starting with the Supreme Soviet itself.

All he does is to bullshit with his squad, and they are the stupidest bastards around.

All I want is a picture -- with a few lines.

All research within the United States contracted for, sponsored, cosponsored, or authorized under authority of this Act, shall be provided for in such manner that all information, uses, products, processes, patents, and other developments resulting from such research developed by Government expenditure will ( with such exceptions and limitations, if any, as the Secretary may find to be necessary in the interest of national defense ) be available to the general public.

All comments concerning effectiveness and use of drugs have been carefully reviewed by a veterinary medical officer with Aj.

All of the subjects in the Kohnstamm-negative and Kohnstamm-positive groups ( as defined for purposes of the personality studies ) were compared with those subjects who shifted in Conditions 3, or 4.

All applicants were generally familiar with the work of the receptionist.

All the manuals for setting up vocational courses stress the importance of first making a local survey of skill needs, of estimating the growth of local jobs, and of consulting with local employers on the types of courses and their content.

All these evaluations are then totted up and tabulated, by adding up the Hits and Significants, with the weight placed on those in the sitter's own reading.

All three are purposely kept small, with a current total enrollment of about two hundred.

All three schools coordinate their educational programs with that of the undergraduate college and, like the college proper, place emphasis upon a broad liberal arts course as the proper foundation for specialized study.

All the officials on the case seem to have been afflicted with a similar myopia as far as Bridget was concerned, although records in police files contain many reports of servants who have murdered their employers.

And Mr. Skyros didn't like Angie, but what with Prettyman and three of his boys inside, and not likely to come out -- And Angie such a valuable salesman, Prettyman said -- All the nuisance and danger of getting in touch with practically a whole new bunch of boys -- Why did everything have to happen at once??