Isotope

Isotopes

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Isotopes are forms of a chemical element whose nuclei have the same atomic number, Z, but different atomic masses, A. The word isotope, meaning at the same place, comes from the fact that all isotopes of an element are located at the same place on the periodic table.

Whereby uranium enriched in the isotope 235 or 233 means uranium containing the isotope 235 or 233 or both in an amount such that the abundance ratio of the sum of these isotopes to the isotope 238 is greater than the ratio of the isotope 235 to the isotope 238 occurring in nature.

(ii) Uranium enriched in the isotope 235 or 233 means uranium containing the isotope 235 or 233 or both in an amount such that the abundance ratio of the sum of these isotopes to the isotope 238 is greater than the ratio of the isotope 235 to the isotope 238 occurring in nature

Isotope Table

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Isobars

Isobar

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Isotope Table

Isobars are nuclides having the same mass number, i. e. sum of protons plus neutrons.

As one of the largest isotope producers in the world, India was in the forefront in matters concerning the use of isotopes.

This table shows all of the known isotopes of the chemical elements.

Contributed most isotope information

Two nuclides are isotones if they have the same number N of neutrons.

This box is used to specify the isotope of the above element on which calculation is performed.

But in this case, we measured the different isotopes of oxygen.

It's between two isotopes of hydrogen, two kinds of hydrogen deuterium, which is heavy hydrogen, which you can get from seawater, and tritium which is super heavy hydrogen.

For this reason, research continues into the techniques known as atomic vapour laser isotope separation (AVLIS) and molecular laser isotope separation (MLIS), both in the United States and elsewhere.

So we're actually measuring each isotope as a different one.

Criminal groups have already succeeded in acquiring radioisotopes.

This box is used to specify the half life of the above isotope.

But you have it in planets and asteroids.

(a) Radioisotope NPS with electrical capacity ranging from a few milliwatts (for miniature spacecraft) to several kilowatts, in the form of RTG and RHU using Stirling cycle and TPE conversion systems

2. Nuclear material means plutonium, except that with isotopic concentration exceeding 80 per cent in plutonium 238 uranium 233 uranium enriched in the isotope 235 or 233 uranium containing the mixture of isotopes as occurring in nature other than in the form of ore or ore residue or any material containing one or more of the foregoing

(b) (i) Nuclear material means plutonium, except that with isotopic concentration exceeding 80 per cent in plutonium 238 uranium 233 uranium enriched in the isotope 235 or 233 uranium containing the mixture of isotopes as occurring in nature other than in the form of ore or ore residue or any material containing one or more of the foregoing

United States space research using radioisotope power systems will be based on a combined RTG and RHU design using plutonium 238 fuel, fully meeting the safety requirements of radioisotope NPS use, since those systems ensure that the plutonium 238 containers are intact and hermetic at every stage of RTG use on board the spacecraft and under all foreseeable accident conditions.

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(b) Special fissionable material plutonium 239, uranium 233, uranium enriched in the isotopes 235 or 233.

Lots of evidence from sediment cores and the pollen types, oxygen isotopes and so on.

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Currently, HEU is used for civilian purposes as a fuel for research and propulsion reactors, in critical assemblies and as the source of certain short lived isotopes, which are produced by bombarding HEU targets.

In addition a new method called separation of isotopes by laser excitation (SILEX) is being developed.

Mass of an atom, taken on a scale where the mass of a carbon atom is 12u. In elements that consist of different isotopes the mid range mass of the isotope mix is given.

(a) Radioisotope NPS as sources of power, heat and ionizing radiation

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But isotopes, particles of electricity, antimatter, neutrinos, the conversion of mass to energy that's E mc 2 gamma rays, transmutation.

The results of continuous studies of the mineralogy, geochemistry, and isotope geochemistry of single chondrules (diameter 500 μm) support a nebular origin but indicate disturbances in the isotopic systems at times long after the formation of the solar system.

Radioisotopes are used in all kinds of equipment in medicine, oil prospecting, agriculture and university research.

It presented a review of the application of radioisotope NPS for research into the outer planets of the solar system.