calcium-48

短语

释义与例句

n.
  1. 1.

    A naturally-occurring isotope of calcium, 4820Ca, with 20 protons and 28 neutrons. It decays very slowly, with a half-life of 4.3x10¹⁹ years. Because it is unusually neutron-rich, it is popular for the manufacture of superheavy elements.

    不可数 物理