Elektron formulalari keltirilgan elementlarni atomlarining metallik ak

A) 4, 2, 1,3

21. (98-9-6) Elektron formulalari keltirilgan elementlarni atomlarining metallik aktivligi ortib borish tartibida joylashtiring. 1) 1s22s22p63s1; 2) 1s22s22p63s?3p64s1; 3) 1s22s22p63s23p63d104s2; 4) 1s22s1. A) 4, 2, 1,3 B) 2, 3,1,4 C)3, 2, 1,4
D) 3, 4, 1,2
E) 1, 2, 3,4