Sentences with phrase «radioactive elements such»

Thanks to this sample, the research team was able to calculate the amount of curium present in the early solar system and to compare it to the amount of other heavy radioactive elements such as iodine - 129 and plutonium - 244.

Carcinogenic, radioactive elements such as uranium and plutonium are too impractical, as are synthetic elements that exist only momentarily in lab experiments — seaborgium and einsteinium, for example.

Antineutrinos are a by - product of the fission in a nuclear reactor, in which an atomic nucleus of a radioactive element such as plutonium splits into lighter elements.

Not exact matches

Studying such compounds in the lab also helps computational researchers to improve their predictions about the more highly radioactive elements present in nuclear waste that are even more difficult to study.

But also new elements are created in the hot ejecta of the explosion, among them radioactive species such as 44Ti (titanium with 22 protons and 22 neutrons in its atomic nuclei) and 56Ni (28/28 neutrons / protons), which decay to stable calcium and iron, respectively.

But in October, many such patients may not be able to get the best possible test, due to a looming shortage of a crucial short - lived radioactive element.

The Hebrew University team of scientists have shown that these contradicting observations can be reconciled if the source of radioactive plutonium (as well as other rare elements, such as gold and uranium) is in mergers of binary neutron stars.

For ores that contain even less concentrated uranium — McArthur River is the most concentrated active mine — the proportion of waste in radium and other radioactive elements (as well as toxic heavy metals such as arsenic and mercury) is even higher — and McArthur River's uranium is much less concentrated than the mines of the past like nearby Rabbit Lake or Shinkolobwe in the Democratic Republic of the Congo's Katanga Province.

The human body takes up strontium, for example, as if it were calcium, which is why the radioactive form of the element can collect in teeth, nails and bones, causing serious health problems such as bone cancer.

And there are other naturally occurring radioactive elements in seawater as well, such as polonium.

One such product linked to these activities, isosaccharinic acid (ISA), causes much concern as it can react with a wide range of radionuclides — unstable and toxic elements that are formed during the production of nuclear power and make up the radioactive component of nuclear waste.

The first system — radioisotope thermoelectric generators, or RTGs — taps heat released from the natural decay of a radioactive element, such as plutonium.

We would generally not be able to measure strontium or plutonium or other radioactive elements if we could not detect cesium because these other elements would be present in such minute amounts that our instruments are not capable of detecting them.

The fission process creates radioactive isotopes of lighter elements such as cesium - 137 and strontium - 90.

«About 50 % of the heat given off by the Earth is generated by the radioactive decay of elements such as uranium and thorium, and their decay products.

However, he suggests listing continuing - education (CE) credits only if the courses you took were on special, advanced topics, such as quality control or preparing radioactive elements.