5. In which group and period in the Periodic table does the element belong? A. Group 1, Period 1 C. Group 3, Period 2 B. Group 2, Period 4 D. Group 8, Period 3 Albich mo hodocrinocolortone
Period 5: Rb, Sr, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In, Sn, Sn, Te, I, Xe (same number of elements as period 4, same general structure, and includes first exclusively radioactive element, Tc)
