化学题,看不懂英文,关于原子构造的An atom in the ground state has seven valence electrons. Which electron configuration could represent the valence electron configuration of this atom in the ground state?

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化学题,看不懂英文,关于原子构造的Anatominthegroundstatehassevenvalenceelectrons.Whichelectronconfigurationcoul

化学题,看不懂英文,关于原子构造的An atom in the ground state has seven valence electrons. Which electron configuration could represent the valence electron configuration of this atom in the ground state?
化学题,看不懂英文,关于原子构造的
An atom in the ground state has seven valence electrons. Which electron configuration could represent the valence electron configuration of this atom in the ground state?

化学题,看不懂英文,关于原子构造的An atom in the ground state has seven valence electrons. Which electron configuration could represent the valence electron configuration of this atom in the ground state?
题目是说:一个原子的基态有7个价电子,下面哪一种电子排布能够表现出这个原子基态的价电子排布形式.