42. Решение задачки по химии №18

36. Analyze the changes in the magnitude of nuclear charges, atomic radii, electronegativities and oxidation states of elements in accordance with your option (Table 5). What are the patterns of these changes when moving along the group from top to bottom or along 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?
36 elements of group 2A

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