Neon is a pure substance. Elements and compounds are pure substances; mixtures are not.
Pure plutonium is obtained as a result of the reaction of PuF4 with calcium, barium or lithium.
Pure. (gas)
Neon is an element, not a compound. A compound requires more than one type of element in the molecule. Since Neon is monatomic (stable as a single atom - does not combine with other atoms to form molecules) there is no chance for it to be a compound.
The most straightforward way to make a pure sample of calcium is to electrolyze a molten calcium salt with an "inert" cathode such as platinum. Considerable care is required to prevent reaction of pure calcium with the ambient atmosphere.
Samples that are pure water include distilled water, rainwater, and water that has been filtered through a reverse osmosis system. These samples do not contain any dissolved minerals or impurities.
You can buy pure element samples from reputable online suppliers such as Luciteria or GalliumSource. These suppliers offer a wide range of pure element samples for educational and collection purposes. Be sure to verify the credibility of the supplier before making a purchase.
Neon is an element . . . one of the noble gases.
Neon. It's actually a sort of orangey-red and not a pure red. Pure red bulbs are probably fluorescent bulbs containing mercury vapor with tinted glass to make the light appear red.
Neon in pure form is colorless because it is a gas. It is one of the elements that are hand to find on earth and it is among the noble gases.
The density of pure aluminium is the same for all samples.
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