| 单词 | nuclear atom |
| 释义 | > as lemmasnuclear atom nuclear atom n. Physics (a) the atom regarded as having the charges of one sign surrounding a smaller central cluster of those of the opposite sign; (b) (in quot. 1938) an elementary constituent of an atomic nucleus. ΘΚΠ the world > matter > chemistry > atomic chemistry > [noun] > atoms atom1555 mote1585 individuum1656 leasting1674 prime1839 nuclear atom1915 the world > matter > chemistry > atomic chemistry > [noun] > nucleus > constituents of nuclear atom1915 proton1920 neutron1921 nucleon1939 1915 J. W. Nicholson in Philos. Trans. (Royal Soc.) A. 215 103 Prof. Rutherford has made it clear that the nuclear atom is, as a matter of fact, the only basis upon which profitable discussion of the constitution of the atom can really be carried on. 1938 R. W. Lawson tr. G. von Hevesy & F. A. Paneth Man. Radioactivity (ed. 2) ix. 94 The α-particle..a kind of ‘molecule’ of the ‘nuclear atoms’ possessing especial stability, and arising from the union of 2 protons and 2 neutrons. 1985 Science 17 May 858/1 Ernest Rutherford, his professor, used those observations to deduce the structure of the nuclear atom. < as lemmas |
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