The decimal expansion of 129/ 2square 5 ( 7) 7 ( 5)
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বয়েলের আইন? 91 বি 49ro'rmdpddoeoeo
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why do transition elements exhibit variable oxidation States??
transition elements or d block elements show variable valency or oxidation States by one or more of the inner d electrons along with the electrons of valence shell, in bond formation.
this is because the energy required for the removal of inner d electrons is almost the same as the energy required for the removal of valence electrons.
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