Sentences with phrase «by radioactive compounds»

Soon thereafter, Ernest Rutherford and Paul Villard identified three different kinds of radiation, dubbed alpha, beta, and gamma rays, emitted by radioactive compounds.

Not exact matches

Pluto's geological activity is driven both by heat leaking from radioactive elements in its interior — a remnant of its birth more than 4 billion years ago — and by the volatile compounds that flit between its surface and its atmosphere.

With more than 17 million Americans now living within one mile of an oil and gas well, there is concern about the possible contamination of surface and groundwater by trace metals, radioactive isotopes and other inorganic compounds released in these areas, they point out.

Compounding concerns, reports from the U.S. Environmental Protection Agency (EPA) leaked earlier in the year indicated that fracking wastewater is too radioactive to be handled safely by water treatment plants.

They detected nickel 60, the product of the radioactive decay of iron 60, in chemical compounds where, by rights iron should be found.»