Question

Of these three metals ; Aluminium, gold and iron, gold is the only one which is found naturally as the free metal. Why is this so?

Answer 1

Answer:

Gold is the only one which is found naturally.

Very few metals can resist natural weathering processes like oxidation, which is why generally only the less reactive metals, such as gold and platinum, are found as native metals.

Answer 2

Explanation:

A native metal is any metal that is found pure in its metallic form in nature.[1][2] Metals that can be found as native deposits singly or in alloys include aluminium, antimony, arsenic, bismuth, cadmium, chromium, cobalt, indium, iron, manganese, molybdenum, nickel, niobium, rhenium, selenium, tantalum, tellurium, tin, titanium, tungsten, vanadium, and zinc, as well as the gold group (gold, copper, lead, aluminium, mercury, silver) and the platinum group (platinum, iridium, osmium, palladium, rhodium, ruthenium). Among the alloys found in native state have been brass, bronze, pewter, German silver, osmiridium, electrum, white gold, silver-mercury amalgam, and gold-mercury amalgam.