Lutemium
There is no metal by the name 'thompson'.
Caesium (or cesium) is the softest metal.
Chromium is the hardest metal; the Mohs hardness of osmium is 7 and the Mohs hardness of chromium is 8,5.
yes it is
titanium
tungsten
diamond
If you mean literally hard, then metal coins (found in many countries) would be the hardest.
sludge hammer
Tungsten.
Gold is not the hardest metal. It is relatively soft compared to other metals. Metals like titanium, tungsten, and steel are harder than gold.
Diamond is the hardest substance on Earth that is non-metal. It is made of carbon atoms arranged in a strong crystal lattice structure, giving it its extraordinary hardness.