英语词汇“electron pair”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

electron pair n. Chemistry and Physics a linked or interacting pair of electrons; spec. (a) two electrons with opposite spins occupying the same orbital in an atom or molecule; cf. duplet n. 2; (b) an electron and a positron formed by decay of a gamma-ray photon; cf. pair production n. at pair n.¹ Compounds 1.

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1910 London, Edinb., & Dublin Philos. Mag. 6th Ser. 19 1 The special electron pair consists of a positive electron which acts as though uniformly distributed through a sphere of radius R = 0.795 x 10^-8... The negative electron is situated at distance r along the electric axis of the atom from the centre of the sphere of radius R.

1923 G. N. Lewis Valence vi. 83 We may suppose that the normal state of the hydrogen molecule is one in which the electron pair is symmetrically placed between the two atoms.

1933 R. A. Millikan in Science 25 Aug. 154/2 A free positive and negative electron-pair often result from the collision of a sufficiently energetic photon with an atomic nucleus.

1958 O. R. Frisch Nucl. Handbk. viii. 12 Electron pairs can be created by other processes including: (a) Passage of a heavy particle through matter..(b) Passage of a fast electron through the field of a nucleus..(c) Collision between two electrons.

1964 J. W. Linnett Electronic Struct. Molecules ii. 28 This difficulty of solving the Schrödinger equation for systems containing two or more electrons means that the development of the electron-pair bond has to be based, to a large extent, on empirical reasoning.

1995 D. M. P. Mingos Essent. Inorg. Chem. 1 (1997) 8 Classically the bond order is the number of electron pairs being shared between connected atoms.

单词	electron pair
释义	> as lemmas electron pair electron pair n. Chemistry and Physics a linked or interacting pair of electrons; spec. (a) two electrons with opposite spins occupying the same orbital in an atom or molecule; cf. duplet n. 2; (b) an electron and a positron formed by decay of a gamma-ray photon; cf. pair production n. at pair n.¹ Compounds 1. ΚΠ 1910 London, Edinb., & Dublin Philos. Mag. 6th Ser. 19 1 The special electron pair consists of a positive electron which acts as though uniformly distributed through a sphere of radius R = 0.795 x 10^-8... The negative electron is situated at distance r along the electric axis of the atom from the centre of the sphere of radius R. 1923 G. N. Lewis Valence vi. 83 We may suppose that the normal state of the hydrogen molecule is one in which the electron pair is symmetrically placed between the two atoms. 1933 R. A. Millikan in Science 25 Aug. 154/2 A free positive and negative electron-pair often result from the collision of a sufficiently energetic photon with an atomic nucleus. 1958 O. R. Frisch Nucl. Handbk. viii. 12 Electron pairs can be created by other processes including: (a) Passage of a heavy particle through matter..(b) Passage of a fast electron through the field of a nucleus..(c) Collision between two electrons. 1964 J. W. Linnett Electronic Struct. Molecules ii. 28 This difficulty of solving the Schrödinger equation for systems containing two or more electrons means that the development of the electron-pair bond has to be based, to a large extent, on empirical reasoning. 1995 D. M. P. Mingos Essent. Inorg. Chem. 1 (1997) 8 Classically the bond order is the number of electron pairs being shared between connected atoms. extracted from electronn.² < as lemmas
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