Why is the general electronic configuration of d block (n-1) d1-10 ns0-2 ,why not ns2 np6 nd1-10? Also the same question goes for f block, why is it (n-2)f1-14 (n-1)d0-1 ns2? Why is it (n-1)d0-1 and not (n-1)d1-10 for the f block?
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Generally, halogens act as decent oxidisng agents because they have high electronegativities. Since halogens fall on the right most side before Nobel gases, they are the highest in electronegativity for each row of elements. Of course, the further down you go on the periodic table, the less strongly these elements are electronegative but they are still the strongest in each row they lie in. This is the reason why.
Now you may wonder why oxidizing agents are generally high in electronegativity. This is because an oxidizing agent is something that reduces other materials. This means they gain electron when they react with other elements generally. This is why we call them “oxidized" which is close to “oxygen.” Many common oxidation reactions that we know involve oxygen so we named the process that oxygen often undergoes oxidation.
Now you may wonder why oxidizing agents are generally high in electronegativity. This is because an oxidizing agent is something that reduces other materials. This means they gain electron when they react with other elements generally. This is why we call them “oxidized" which is close to “oxygen.” Many common oxidation reactions that we know involve oxygen so we named the process that oxygen often undergoes oxidation.
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