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All electromagnetic radiation - including light in space, cosmic microwaves, stellar x-rays are pure sine waves. They existed billions of years before man appeared in the universe!
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∙ 9y ago
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Does 100 percent pure aluminum exist?
Yes.
What items use only 1 element to make?
Diamond is made of pure carbon
How much percentage of water is pure?
The percentage of pure clean water is only 1% among all kinds.
What is a pure tessallation?
a tesselation with only 1 shape used
What is the 1810 one cent coin made of?
It's pure copper.
Can air be pure?
A pure air can be prepared only in laboratory, by mixing the components. Note that air is not a compound but a mixture of gases. In the nature pure air don't exist - the air is polluted.
Will germanium combine with other elements?
Yes, it does not exist in nature as a pure substance.
Where can pure calcium be found?
Pure calcium can usually be found only in a laboratory or chemical supply storage facility; calcium is too reactive to exist in a free state in nature.
How was mercury first isolated in the pure state?
Mercury exist in pure state in the nature and is known from thousands of years.
Does plutonium exist alone in a natural state?
No, plutonium occurs only in trace amounts in nature, and it's too reactive to occur as a pure metal.
Which element does not exist in its pure form but must be derived from compounds?
There are many elements that do not exist in nature in pure form, especially the highly reactive ones toward either end of the periodic table, such as sodium and chlorine. These are always derived from compounds. Also the only metal that is found in its pure form in nature is gold due to its extreme unreactivity. Your question hints at something but is incomplete.
What are the only elements that are distinct in nature as uncombined atoms?
The noble gases generally exist in nature in monoatomic form. Some metals are unreactive enough to exist in nature as pure "nuggets" of metal; gold is probably the most notable, but there are places where one can find nuggets of (nearly) pure copper as well.
Does bromine exist in its pure from?
Question as posed makes no sense. Free? In nature? If so, no.
Is magnesium always alone?
Magnesium doesn't exist in the nature as a pure chemical element.
Why is most objects you observe are not elements?
- many elements doesn't exist in pure form in the nature - many objects are made from alloys - many objects are mixture of compounds
What is original form?
Platinum exist in the nature as pure platinum, in alloys or as compounds (sulfides, arsenides).
What form is platinum?
Platinum exist in the nature as pure platinum, in alloys or as compounds (sulfides, arsenides).
