atomic number 92

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Noun1.atomic number 92 - a heavy toxic silvery-white radioactive metallic elementatomic number 92 - a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
uranium 235 - a uranium isotope with mass number 235; capable of sustaining chain reactions
uranium 238 - the commonest isotope of uranium; it is not fissionable but when irradiated with neutrons it produces fissionable plutonium 239
pitchblende, uraninite - a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore
References in periodicals archive ?
Finally able to say the name of the silvery gray element with atomic number 92 out loud, they gleefully yelled it with reckless abandon.
And it involves a mystery about uranium - atomic number 92.
Uranium, with atomic number 92, is the heaviest naturally occurring element.