Question

general electronic configuration valence she'll valence of 3 a group elements​

Answer 1

Answer:

Periodic table group                                                    Valence electrons

Group 2 (II) (alkaline earth metals) and helium                       2

La-Yb, Ac-No 3–16

Sc-Zn, Y-Cd, Lu-Hg, Lr-Cn                                                    3–12

Group 13 (III) (boron group)                                                         3

Kindly mark me as brainliest..