TA BA H2 A 4A SATA He ho B C N O F Ne NM B 405 10 Si P S Cl Ar Kaset CONCU 20 si Ge RS Se Br Ke S2 NB Mo Tc Ru Rh Pd Em

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Ta Ba H2 A 4a Sata He Ho B C N O F Ne Nm B 405 10 Si P S Cl Ar Kaset Concu 20 Si Ge Rs Se Br Ke S2 Nb Mo Tc Ru Rh Pd Em 1 (26.72 KiB) Viewed 40 times

TA BA H2 A 4A SATA He ho B C N O F Ne NM B 405 10 Si P S Cl Ar Kaset CONCU 20 si Ge RS Se Br Ke S2 NB Mo Tc Ru Rh Pd Em sn sh I | Me Bola Taw Re Os Ir PL 11 PB Po At Rn TORREN Ce Pr Nd An Sm Eu Gd Tb Dy Ho Er Tm YbU Th Pa U Np Pu Am Cm Ik CE E Em Md No and period (1) The element with an electron configuration of 1s 2s is in group and period (2) The element with an electron configuration of 1s 2s 2p 3s 3p is in group