【摘要】 <正> 测定电子亲合能的方法虽多,由于实验困难,故元素的电子亲合能数据尚少,且可靠性较差。因此有人由理论直接估算电子亲合能,如 Glocker和Edlén的工作。 slater计算原子电离能的方法经修改之后,虽能计算原子的各级电离能,却不能外推至负离子,而计算电子亲合能。我们认为无论是slater或经修改的方法都是分析原子更多还原

【Abstract】 The electron affinities of the alkalis are calculated by means of the two-electron variation function:φ=（γ1γ2）^n-1[1+c（γ₁²+γ₂²）]e⁽-a（γ₁+γ₂）in conjunction with Slater’s concept of atomic core. The values for lithium, sodium and potassium thus obtained agree satisfactorily with previous values reported in literature, while those for rubidium and cesium given are new as far as we are aware of. The electronegativities of these elements are also given, which are in good agreement with those given by Muliken and by Pauling.更多还原