SEP Analyze Data Find the first column, or Group 1, of the periodic table, and then identify the elements included in the table that are organized in this column. What do the electron configurations of these elements have in common?

Electron Configurations of the First 12 Elements Atomic Element 1s 2s 2px 2py 2pz 3s Electron configuration number H 1s1 2 He 1s2 3 Li 1_ 1s 251 4 Be 1s 252 5 B T- 1s- 2s 2p 6 C 15 2s 2p2 N 1_ 1s 2s 2p3 8 O 1s 2s 2p 9 F 1s 2s?2p5 10 Ne 1s 2s 2p 11 Na 1 _ 1s 2s 2p 351 12 Mg 1s 2s'2p$3s