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Most metals oxidize under the right conditions. Gold, platinum and palladium do not oxidize at room temperature, which is the reason they are used in jewelry and electronics. Stainless steel, titanium, tantalum and niobium are highly resistant to oxidation.

Rust is iron oxide. The forms Fe2O3, Fe3O4, and FeO are the most common. Rust is a porous coating, which allows air and water to get in contact with the base metal, and the rusting process continues. Iron and steel products except the many stainless steels will readily oxidize or rust in the presence of oxygen and water in the earth's environment. Stainless steels contain enough chromium (minimum of 13% Cr by weight) to retard the rusting process. The chromium contained in the alloy forms an oxide (oxidation!) that provides a thin barrier protecting the steel and making it "stainless." This does not mean it won't corrode eventually--only that it is highly resistant to oxidation.

Pure titanium is exceedingly resistant to attack from water and air. It can develop an extremely thin skin of oxidized titanium that provides a passive barrier separating the metal from its environment.

Anodization is a deliberate oxidization of aluminum (aluminum), titanium, magnesium, zinc or niobium that forms a passive barrier that protects the metal from further destruction.

Copper away from contact with other metals will oxidize to a strongly protective barrier coating, making the metal underneath durable. Copper alloyed with zinc (brass) and tin (bronze) also only oxidizes superficially, making these alloys stand up well to corrosion.

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โˆ™ 2011-09-13 13:17:02
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Q: Which metals don't oxidize
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Related questions

How does orange juice oxidize metals?

it doesn't


What metals oxidize under UV light?

Metals are not oxidized by UV radiation.


What happens to metals when it is added to oxygen?

They rust (oxidize)


Which metals oxidize easily?

Alkali metals: lithium, sodium, potassium, rubidium, caesium, francium.


Which metals oxidize?

Stainless steel, Aluminium, Gold etc


Why do metals lose their lustre after sometime?

Because they are exposed to air and oxidize.


Why do metals oxidize?

Oxidizing is basically just rust. In a sense all metals oxidize at their element level. Aluminum however builds up a layer of aluminum oxide which prevents aluminum from further oxidizing.


What is the acid that will melt metal?

Acids don't actually melt metal, they oxidize or corrode them. Usually producing the corresponding metal salt and hydrogen gas. Most strong acids (hydrochloric, hydrobromic, hydroiodic, perchloric, nitric, and sulfuric acids) will oxidize metals in this manner. Some weak acids such as hydrofluoric acid can oxidize metals. Some metals, such as the alkali metals and alkaline earth metals will react with virtually any acid and even water. Nitric acid can oxidize copper, which normally doesn't react with acid. Aqua regia, a mixture of nitric acid and hydrochloric acid will oxidize gold and platinum, which are usually considered immune to corrosion.


Of the metals Pb Hg Na and Ca which is the most difficult to oxidize?

Hg


Metals may naturally oxidize and virtually always?

Metals may naturally oxidize and virtually always have the same oxidation number. An oxidation number is assigned to an element in chemical combination that represents the number of electrons lost or gained.


Can metal rust while under water?

Yes. Whether the water is fresh or salty, it still has oxygen in it and the metal will oxidize over time. If the metal is Gold, plutonium or titanium it wont rust because these metals dont oxidize. If you place metal (iron) in oil, it wont rust.


Can metalloid rust?

no metalloid cannot rust because they posssess the characteristics of both metals and non metals. but they are not metals.they cannot be oxidize.


What metals oxidize to produce certain colors?

Iron: Red Orange Brown Copper:Green


What are two metals that tarnish quickley in air?

Silver and copper! both will oxidize noticably.


What elements can rust?

Other metals can oxidize, but normally rust specifically means iron oxide.


Which rusts first aluminum or copper?

Neither. Only iron rusts. Other metals oxidize.


Name a disadvantage of ferrous metals?

They generally oxidize with exposure to the moisture in air, producing rust.


What block of elements on the periodic table will oxidize or lose elements?

They lose electrons, not elements. These are metals. Group I metals (IA or alkali metals), Group 2 metals (IIA or alkaline earth metals), transition metals (groups 3 thru 12), and all other metals.


What metal rusts by oxidation?

Many metals will oxidize but only Iron forms rust when doing so.


State of alkali metals at room temperature?

Unstable in air or water, they oxidize rapidly and sometimes violently.


Group 17 elements form?

Group 17 elements generally oxidize metals to form halides.


What elements undergoes rusting?

Most of the metals will oxidize, but the only one for which that process is called "rusting" is iron.


Which property of metals make them suitable for use in jewelry?

The most important property of the metals that are suitable for jewellery is that they do not oxidize easily. These metals are at the bottom of the activity series, and they are copper, silver, mercury, platinum, gold.


What metals dont rust?

the metals that dont rust are gold, stainless steel and silver


What do you mean by noble metals?

The noble metals are a group of metals that resist oxidation and corrosion in moist air. They are the opposite of the base metals, which more readily oxidize and corrode. Some of the noble metals are gold, platinum, and iridium. Aside from being corrosion resistant, they are also very expensive.

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