A:砷 4s24p3
B:溴 4s24p5
C:磷 4s24p3
D:锑 5s25p3
— Are you a fan of Zhou Libo?—Yes. Not only I but also my sister him very much.
在物理学中,通常用路程和位移这两个物理量来描述物体空间位置的变化.下列说法正确的是( )