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vikash chandoa Grade: 12
        
Why manganese (Mn) has lower melting point than that of its neighborhood elements? Manganese has 5 free electrons in its d orbital so it take place more in metallic bonding as compared to other elements in its neighborhood (left and right in periodic table) who have 4 free electrons in their d orbital. More metallic bonding means more energy requires in breaking bond and more melting point but it is not so can you please tell me why?
6 years ago

Answers : (3)

SAGAR SINGH - IIT DELHI
879 Points
										Dear student,
Manganese has 5 free electrons in its d orbital so it take place more in metallic bonding as compared to other elements in its neighborhood (left and right in periodic table) who have 4 free electrons in their d orbital. More metallic bonding means more energy requires in breaking bond and more melting point.
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Askiitians Expert
Sagar Singh
B.Tech, IIT Delhi
6 years ago
Sumanth
36 Points
										
Manganese has 5 electrons in its d-orbital . This is a half filled stable configuration. Hence these electrons are not free to participate in metallic bonding. That is why Mn has unusually low M.P. Was this answer helpful??
8 months ago
rajesh kumar sahu
11 Points
										
if the configuration is half filled, the it should pair up with another half filled orbital to give very strong metallic bonding and thus provide high melting point. i think the reason is something else.
8 months ago
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