A.3,2,2,+1∕2 B.3,1,-1,+1∕2 C.2,2,0,+1∕2 D.2,1,0,-1∕2
有四種元素,其基態(tài)原子價層電子組態(tài)分別為: ①2s22p5 ②4s24p5 ③5s22p0 ④4s24p0 它們中電負性最大的是()。
A.① B.② C.③ D.④
A.1s22s22p63s23p63d104s24p64d105s25p4 B.1s22s22p63s23p63d104s24p5 C.1s22s22p63s23d104s24p64d105s25p66s1 D.1s22s22p63s23p63d104s24p64d105s2