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单词 θ68585
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the world > matter > chemistry > elements and compounds > hydrogen > [noun] > isotopes (6)
D1933

deuterium (originally called diplogen).

deuterium1933

One of the isotopes of hydrogen, differing from the commonest isotope in having a neutron as well as a proton in the nucleus and present to about 1…

diplogen1933

= deuterium, n.

protium1933

The ordinary isotope of hydrogen, having only a proton in the nucleus. Symbol 1H, H1. Cf. deuterium, n., tritium, n.

tritium1933

A radioactive heavy isotope of hydrogen, having two neutrons as well as a proton in the nucleus, which constitutes one part in 1018 of the…

T1948

= tritium, n.

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更新时间:2025/3/1 5:12:23