71. Solving a chemistry problem

32. Analyze the changes in the nuclear charges, atomic radii, electronegativity and oxidation states of the elements in accordance with your option (see Table 3). What are the regularities of these changes when moving through the group from top to bottom or through the period from left to right? How does the metallicity of the elements and the nature of their oxides and hydroxides change in this direction?
Elements 3 periods