carbon-12

短语

【化学】碳—12 (碳原子的同位素)[亦作 carbon-12]

释义与例句

n.
  1. 1.

    The most abundant of the two stable isotopes of carbon, 126C, having six protons and six neutrons; it is the standard for atomic weight and is used to define the mole.

    不可数 物理