一、元素周期系 1.碱金属元素基态原子的核外电子排布
1s22s1或[He]2s1
1s22s22p63s1或[Ne]3s1
11
1s22s22p63s23p64s1或[Ar]4s1
19
1s22s22p63s23p63d104s24p65s1或[Kr]5s1
37
1s22s22p63s23p63d104s24p64d105s25p66s1 或[Xe]6s1
55