Question

Which metal from the following alkali metals has the lowest melting point ?

A
Hg
B
K
C
Rb
D
Cs

Solution

The correct option is A $$Hg$$The melting points of the alkali metals as a group are lower than those of any other non gaseous group of the periodic table, ranging between 179 °C (354 °F) for lithium and 28.5 °C (83.3 °F) for cesium. Among the metallic elements, only mercury has a lower melting point (−38.9 °C, or −38.02 °F) than cesium.Chemistry

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