Tritium

Science / Chemistry / Tritium: A radioisotope of hydrogen with two neutrons and one proton in its nucleus.

Hydrogen (H)

Science / Periodic Table of Elements / Hydrogen (H): Atomic number: 1, Atomic mass: 1.007825 g.mol -1, Electronegativity: 2.1, Density: 0.0899*10 -3 g.cm -3 at 20 °C, Melting point: - 259.2 °C, Boiling point: - 252.8 °C, Vanderwaals radius: 0.12 nm, MORE

Ununtrium (Uut)

Science / Periodic Table of Elements / Ununtrium (Uut): Atomic number: 113, Atomic mass: unknown, Electronegativity acoording to Pauling: unknown, Density: unknown, Melting point: unknown, Boiling point: unknown, Vanderwaals radius: unknown, Ionic radius: MORE

Ununpentium (Uup)

Science / Periodic Table of Elements / Ununpentium (Uup): Atomic number: 115, Atomic mass: unknown, Electronegativity acoording to Pauling: unknown, Density: unknown, Melting point: unknown, Boiling point: unknown, Vanderwaals radius: unknown, Ionic radius: MORE

Radioisotope

Science / Biology / Radioisotope: Term applied to a radioactive isotope, such as carbon-14 or uranium 238. Radioisotope nuclei are unstable and spontaneously breakdown and emit one of a number of types of radiation. MORE

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