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Position of an element in periodic table depends upon its electronic configuration and properties. Hydrogen resembles the elements of group I-A, IV-A and VII-A in some respects. Properties of hydrogen do not completely match any one of the above-mentioned groups. That is why position of hydrogen is still undecided.
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y so
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ismein khush hone ki kya bath hai
i asked cassualy
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Its only because ,, if anyone see the hydrogen in periodic table in class 9th then he/she can busy to find the proper place for hydrogen ........for 4 years upto class 12th... and finally dont get answer... even he or she got ,,,, not profit will come.....:D

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