Boiling points 5-block metals

Table 4.18 Melting and boiling points of s-block metals... 

The d-block metals (except mercury and cadmium) typically have relatively high melting and boiling points (Figure 13.6) compared to the non-d-block metals.This is a consequence of strong metallic bonding (Chapter 4) because the first-row d-block metals have valence electrons from the 3d and 4d sub-levels. 

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