0
Metals that grow dull when exposed to air are more than metals that remain shiny?
Wiki User
∙ 12y ago
You seem to be missing a word there. I'm going to guess that you're looking for reactive. Metals that grow dull (or are oxidized) on contact with air are more reactive than metals that don't oxidize in air (or do so very slowly).
Wiki User
∙ 12y ago
Metals that grow dull when exposed to air often react with oxygen to form a thin layer of oxide on their surface, which diminishes their shine. In contrast, metals that remain shiny when exposed to air may have properties that make them more resistant to oxidation or may form a protective layer that prevents dulling. Factors such as the metal's reactivity, composition, and surface treatment play a role in determining whether a metal will stay shiny or grow dull when exposed to air.
Wiki User
∙ 10y agoMost metals react with air. Depending on the metal this process is called tarnishing, corroding, rusting. This may involve the reaction with oxygen, water vapour, sulfur compounds, dissolved carbon dioxide. Oxides, hydroxides, carbonates, sulfates, sulfides may all be formed depending on the metal and the environment. Some metals do NOT lose their lustre. Platinum and gold are examples- which is why they are used in jewellery
Wiki User
∙ 6y agoTheir surface is oxidized.
Wiki User
∙ 13y agoOxides
Add your answer:
Earn +20 pts
Most elements are what?
metals
What are very soft shiny metals with low melting points?
Alkali Metals
Are metals always shiny?
No. None of the Group 1 and Group 2 elements of the periodic table, the alkali and alkali earth metals respectively, stay shiny when exposed to air. They all react with moisture in air, and they tarnish quickly. A number of other metals will not stay shiny, either. Iron can be polished, but it will oxidize (rust) if left in air. Some metals will not react with air or the moisture in it, and some will. The results are mixed in that there are a lot of transition metals (Groups 3 through 12 on the periodic table), and each one would have to be evaluated independently (or with its "group mates") to discover if it would stay shiny. Links are provided to some relevant Wikipedia articles. The links are to the groups of metals, and each element in the Group chart is a hyperlink to that element. It should make it easy to do a quick search of the metals to get a complete answer, if that is what is desired.
Are all metals shiny and in solid form?
Not all metals have lustre(that is, to be shiny) nor are all in solid form. It is just a characteristic property found among majority of the metals. For example, sodium is a metal which lacks lustre and mercury is in liquid form at room temperature.
Elements that are usually malleable and shiny are?
Metals such as gold, silver, and copper are usually malleable and shiny. They can be easily shaped or flattened without breaking and have a lustrous, reflective surface.
Are all non-metals shiny?
Non-metals are not normally shiny.
What is the shiny appearance of metals?
There are quite a few metals that are shiny including gold. Silver and titanium are also metals that are shiny when polished.
Does non metals have shiny appearances?
It depends on the element. Some metals have very un-shiny appearences, and some non-metals are very reflective.
Elemental calcium and magnesium metal are shiny when they are pure if the metals you worked with were not shiny explain why this was so?
They were exposed to and reacted with oxygen in the air.
Are metals non metals or metalloids dull or shiny?
metals are malleable in nature
What are the three properties of alkali metals?
1 electron in their outer shell, very reactive and are shiny but they lose their shiny surface when exposed to air.
Is a shiny a metals?
Yes, it is.
Are metals always shiny?
No. None of the Group 1 and Group 2 elements of the periodic table, the alkali and alkali earth metals respectively, stay shiny when exposed to air. They all react with moisture in air, and they tarnish quickly. A number of other metals will not stay shiny, either. Iron can be polished, but it will oxidize (rust) if left in air. Some metals will not react with air or the moisture in it, and some will. The results are mixed in that there are a lot of transition metals (Groups 3 through 12 on the periodic table), and each one would have to be evaluated independently (or with its "group mates") to discover if it would stay shiny. Links are provided to some relevant Wikipedia articles. The links are to the groups of metals, and each element in the Group chart is a hyperlink to that element. It should make it easy to do a quick search of the metals to get a complete answer, if that is what is desired.
Are alkaline earth metal shiny or dull?
Alkali Earth metals are shiny. All metals have a property called luster witch means that they are shiny. All metals are also malleable, ductile, and are good conductors.
What group of elements are soft silver-white and shiny metals?
These are the alkali metals.
What metals are shiny and have one or two electrons in their outer level?
Transition metals:)
What are very soft shiny metals with low melting points?
Alkali Metals
