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Why does copper tarnish and turn green?
copper tarnish and turn green because of present of iron in it.
Why do metals need to be protected against rust and tarnish?
Metals need to be protected against rust and tarnish because rust and tarnish eat metals.
Which metals tarnish?
Copper, silver, and brass tarnish.
Does jewelry make your hands turn black?
no it will tarnish on you and turn green but only if it isn't stainless steel
Do the alkali metals have the ability to tarnish?
By forming their oxides, the alkali metals tarnish very quickly with respect to many other metals.
What makes sterling silver tarnish?
exposure to substances which react with the surface of the metal, usually sulphur. Sterling silver is .925 (925%) pure silver. The other .75 is made up of an alloy consisting mainly of copper which oxidizes over time. When copper is exposed to oxygen, it darkens and eventually turns green. Sterling silver doesn't usually turn green but will turn almost black if not protected. Fine silver or .999 silver doesn't tarnish. Argentium silver is a new type of sterling silver that is tarnish-resistant. Only certain chemicals will tarnish Argentium but it will not tarnish from oxidation. Some metals that contain little to no silver are branded with names that make it seem like real silver. One of these metals is nickle silver, which doesn't contain any silver at all.
Which groups of elements are silvery-white metals that tarnish when exposed to air?
The elements are the alkali metals.
Why do some metals tarnish and some corrode?
eat my poo
Is rust the same as tarnish?
Yes, both are forms of oxidation. but rust can penetrate through an entire stell part. tarnish is typically a surface only form of oxidation. Metals like silver are commonly thought to tarnish, but metals such as aluminum also "tarnish", forming an oxide layer almost instantly after fresh metal is exposed.
Does palisil metal turn or tarnish?
yes
What kind of ring will not turn your finger green?
Most metals like gold and platinum will not turn your finger green unless you have a metal allergy. Most people are allergic to the alloys added to thee metals for strength like copper. Sterling silver and platinum are two of the hypoallergenic metals.
Does white gold tarnish?
A piece of jewelry marked 18K will tarnish. The 18K means that the piece is 18 parts pure gold and 6 parts other metals. When gold contains no other metals, it is said to be 24 karats, or 24K.
