Why Manganese has lower Melting and boiling point?
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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.
Noorzarah:
Is it because it is half filled or something?
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Manganese has lower Melting and boiling point ;
# Because of the following reasons :--
- With decrease in unpaired or vacant electrons or orbitals, Melting and Boiling point also decreases .
- Thus, there is weak mettalic bonding further due to less unpaired electrons .
- It reduces Enthalpy of Atomization value .
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