It is chemically inert and found in nature. It can be dissolved in aqua regia and Fluorine will also react with it though.
They are not always. Pure metals like gold never rust. Aluminum is also very corrosion resistant and its alloys not necessarily more so. Chromium is another metal that is extremely corrosion resistant and is alloyed with Iron and carbon to make a type of stainless steel.
Titanium and zirconium, for example, are resistant to corrosion in seawater.
Jewellery, electrical contacts, corrosion resistant coating, reflective foil.
Like gold, platinum is very resistant to corrosion. However, platinum is much harder than gold so it does not get scratched or dented as easily.
Typically they are coated or plated in corrosion resistant substances.
Gold
Gold is very resistant to corrosion and is also very unreactive.
Well the way you phrased your question is that one is more than another but actually there are multiple such as Nickel,Aluminum,and Gold. Whitch are all equally corrosion resistant.
Gold wiring is needed for these purposes: - Very low resistance - Corrosion-proof wiring - Low resistance contacts points - Failure-resistant microcircuitry - Areas exposed to chemicals and chemical vapors Gold plated wiring is needed for these purposes: - Corrosion-resistant copper circuit boards. - Circuit board edge connectors - Trouble-free contact pins and sockets - Corrosion-resistant wiring - Outdoor devices
They are not always. Pure metals like gold never rust. Aluminum is also very corrosion resistant and its alloys not necessarily more so. Chromium is another metal that is extremely corrosion resistant and is alloyed with Iron and carbon to make a type of stainless steel.
Titanium and zirconium, for example, are resistant to corrosion in seawater.