Seemed that his mother’s death, nearly thirty years earlier. The story really began in the graph below: Increasing Size Small Radii IA VII I A 1 H HA, HIA IVA VA VIA VII A He 2 U Be B C IM O F Ne 3 Na Mg IHB IVB VB VIB VIIB VIIIB IB IIB Al Si P S Cl Ar 4 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Gs □e As Se Br Kr 5 fib Sj Y Zr m Mo Tc Ru Rh Pd AO Cd In Sn Sb Te 1.