http://apps.kemi.se/nclass/ClassificationsOfMetals.asp
Diamond is the Hardest in the world. Coming from carbon. Iron, Gold , Aluminium are hard metals
the majoriy of metals are good conductors such as cooper and iron other metals such as gold are not
Potassium.
Both Gold and Iron are metals.
Answer is potassium. You have seen silver,iron and aluminium. You must not have handled potassium.
iron, copper, zinc, magnesium, gold, sodium, potassium, etc. You can view s-clock and d-block of periodic table to find more metals.
sodium, calcium, magnesium, aluminium, zinc, iron, tin and led are metals more reactive than hydrogen.
potassium sodium lithium calcium magnesium aluminium (carbon) zinc iron (hydrogen) copper silver gold
It is a scale of how reactive metals are here it is potassium most reactive sodium calcium magnesium aluminium zinc iron tin lead silver gold platinum least reactive
metals which can be drawn in to sheets are called malleable. e.g., gold
potassium
ferous (iron) and non-ferous (copper) metals. A magnet will pick up iron but not copper.