Question:
With increase in atomic number, the melting point of transition metals :
With increase in atomic number, the melting point of transition metals :
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Unpaired d-electrons strengthen metallic bonds → higher melting point.
Updated On: Jan 14, 2026
- first increases and then decreases
- increases continuously
- first decreases and then increases
- remains constant
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The Correct Option is A
Solution and Explanation
In transition metals, melting point first rises due to stronger metallic bonding as more unpaired d-electrons contribute to bonding. After mid-series, pairing of d-electrons reduces bonding strength, so melting point decreases again.
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