how does tendency to form basic oxides change down a group???
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It is a known fact that all the metals form oxides that are basic in nature, while the non-metals form oxides that are acidic or neutral. The metallic nature of the substances increases as we go down the periodic table and the non-metallic nature increases as we move from left to right of the periodic table.
As we go down the periodic table, the elements become more ionic and electropositive. As the electropositivity increases, they react with water and acids to form more basic oxides and hydroxides.
However, for the 'd'-block elements and for the transition elements especially in the middle, the basic properties and their ability to form ions decreases as they go down the group.
As we go down the periodic table, the elements become more ionic and electropositive. As the electropositivity increases, they react with water and acids to form more basic oxides and hydroxides.
However, for the 'd'-block elements and for the transition elements especially in the middle, the basic properties and their ability to form ions decreases as they go down the group.
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As we move from the top to the bottom in this group, new shells are included, expanding the nuclear size.
As nuclear size expands, the separation between the nucleus and the peripheral shell increases or expands. Thus, atomic fascination continues diminishing down the gathering.
Accordingly, in the event of components at the last, an electron in the peripheral circulation is feebly pulled in by the nucleus. In this way, two particles of these components, meeting up, effectively give their exclusive electron which is acknowledged by an oxygen molecule. This prompts the arrangement of the ionic bond, creating a relating oxide.
Despite what might be expected, if there should arise an occurrence of components at the best, because of nearly more atomic attraction, an electron in the peripheral circulation isn't discharged effectively when contrasted with components at the base.
As nuclear size expands, the separation between the nucleus and the peripheral shell increases or expands. Thus, atomic fascination continues diminishing down the gathering.
Accordingly, in the event of components at the last, an electron in the peripheral circulation is feebly pulled in by the nucleus. In this way, two particles of these components, meeting up, effectively give their exclusive electron which is acknowledged by an oxygen molecule. This prompts the arrangement of the ionic bond, creating a relating oxide.
Despite what might be expected, if there should arise an occurrence of components at the best, because of nearly more atomic attraction, an electron in the peripheral circulation isn't discharged effectively when contrasted with components at the base.
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