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24. Transition Metals and Coordination Compounds - Part 1 of 3

24. Transition Metals and Coordination Compounds / Atomic Radius & Density of Transition Metals / Problem 8

Tungsten, used in the aerospace and automotive industries, is much harder than lithium or sodium. Provide an explanation as to why this is the case.

A

Tungsten is much harder than lithium or sodium because it has a higher atomic number.

B

Tungsten is much harder than lithium or sodium because it has a higher melting point.

C

Tungsten is much harder than lithium or sodium because it has more unpaired electrons in the d orbital.

D

Tungsten is much harder than lithium or sodium because it has no unpaired electrons in the d orbital.

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