8.3 ସଂକ୍ରମଣ ଧାତୁଗୁଡ଼ିକର $3 d$ ଶ୍ରେଣୀ ମଧ୍ୟରୁ କେଉଁଟି ସର୍ବାଧିକ ସଂଖ୍ୟକ ଅକ୍ସିଡେସନ୍ ଅବସ୍ଥା ପ୍ରଦର୍ଶନ କରେ ଏବଂ କାହିଁକି?
ଉତ୍ତର
ମ୍ୟାଙ୍ଗାନିଜ୍ $ (Z=25) $ ସର୍ବାଧିକ ସଂଖ୍ୟକ ଅକ୍ସିଡେସନ୍ ଅବସ୍ଥା ଦେଖାଏ କାରଣ ଏହାର ଇଲେକ୍ଟ୍ରୋନିକ୍ ବିନ୍ୟାସ $ 3d^54s^{2} $ । Mn ର ଡି-ଉପକକ୍ଷରେ (5ଟି ଇଲେକ୍ଟ୍ରନ୍) ସର୍ବାଧିକ ସଂଖ୍ୟକ ଅଯୁଗ୍ମ ଇଲେକ୍ଟ୍ରନ୍ ରହିଛି। ତେଣୁ, Mn +2 ରୁ +7 ପର୍ଯ୍ୟନ୍ତ ସର୍ବାଧିକ ସଂଖ୍ୟକ ଅକ୍ସିଡେସନ୍ ଅବସ୍ଥା ପ୍ରଦର୍ଶନ କରେ।
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