Am entire group of elements was unkiown when the periodic table was first developed because they were unreactive and no knoun compounds were composed of them what most lkely led to the incusion of these elements in the periodic table?

The spermists believed that: the male made the only hereditary contribution to the offspring the male and female traits were blended in the offspring the female made the only hereditary contribution to the offspring the male and the female made equal contributions to the next generation