• No, OK and that's correct, because each photon of light actually has more energy than is needed to eject an electron.

    没有,好,对了,因为每一个光子实际上,都有更多的能量去逐出一个电子。

    麻省理工公开课 - 化学原理课程节选

  • So it looks like not too many more than half of you got this correct, so make sure you can look at your periodic table and figure out how to think about ionization energy in terms of z effective, not just in terms of memorizing what that trend is.

    看起来只有一半多一点的人,做对了,所以请大家务必做到能够通过观察周期表,并在考虑电离能时,从有效核电量的观点出发,而不是仅仅依靠记住这个规律。

    麻省理工公开课 - 化学原理课程节选

  • If Hughes is correct, this is part of him saying that being a czar is more than just dressing up, and playing the role, and going to fancy dances, and hanging around with fancy people who don't do a damn thing.

    如果休斯是对的,他的这一部分性格说明了,作为沙皇不仅仅要衣着华丽,扮演沙皇的角色 参加华丽的舞会,和贵族上层一起消磨时光,整日无所事事

    耶鲁公开课 - 欧洲文明课程节选

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