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Atomic Radius & Density of Transition Metals

24. Transition Metals and Coordination Compounds / Atomic Radius & Density of Transition Metals / Problem 1

Explain why chromium has a higher melting point than scandium or zinc.

A

Cr has a higher melting point than Sc or Zn because Cr has more unpaired electrons in its d-orbital.

B

Cr has a higher melting point than Sc or Zn because Cr has fewer unpaired electrons in its d-orbital.

C

Cr has a higher melting point than Sc or Zn because Cr has a smaller atomic radius.

D

Cr has a higher melting point than Sc or Zn because Cr has a larger atomic radius.

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