einsteinium definition

  • noun:
    • A synthetic transuranic element very first generated by neutron irradiation of uranium in a thermonuclear explosion and from now on typically manufactured in the laboratory by irradiating plutonium and other elements. Its longest-lived isotope is Es 254 with a half-life of 276 times. Atomic number 99; melting point 860°C. See Dining Table at factor.
    • a transuranic substance factor (icon Es) with atomic quantity 99.
    • a radioactive transuranic factor generated by pestering plutonium with neutrons
    • A synthetic transuranic factor initially from neutron irradiation of uranium in a thermonuclear explosion and now often manufactured in the laboratory by irradiating plutonium and other elements. Its longest-lived isotope is Es 254 with a half-life of 276 times. Atomic quantity 99; melting point 860°C. See Dining Table at element.
    • a transuranic substance factor (sign Es) with atomic quantity 99.
    • a radioactive transuranic factor from bombarding plutonium with neutrons

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