Which one of the following metals has both malleability and ductility

Which one of the following metals has both malleability and ductility properties ?

Na
Au
Ce
Hg
This question was previously asked in
UPSC CDS-1 – 2021
Gold (Au) is a well-known metal that exhibits both malleability and ductility to a very high degree. It can be hammered into extremely thin sheets (gold leaf) and drawn into very fine wires.
– Malleability is the ability of a material to be deformed under compression without fracturing (hammered into sheets).
– Ductility is the ability of a material to be deformed under tensile stress without fracturing (drawn into wires).
– These properties are characteristic of metals due to the nature of metallic bonding.
– Sodium (Na) is malleable and ductile but much softer and less durable than gold.
– Cerium (Ce) is a malleable metal, but not as famously malleable and ductile as gold.
– Mercury (Hg) is a liquid at room temperature and therefore does not exhibit these solid-state mechanical properties.
– Gold is considered the most malleable and ductile of all metals.
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