下列关于外围电子排布式为3s23p4的粒子描述正确的是(     )   

下列关于外围电子排布式为3s23p4的粒子描述正确的是(    

   A. 它的原子核外有三种形状不同的电子云    

B. 它的原子核外电子共16种不同的运动状态

   C. 它的元素符号为O

D. 核外电子轨道表示式为     1s   2s     2p     3s   3p

                             

答案

B

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