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The Noble Gases are colourless, monatomic elements.
When they are excited electrically, each gas exhibits a distinctive set of spectral lines, characteristic of that element.
Helium has five lines in the visible spectrum dominated by yellow;
Neon has quite a few lines in the visible spectrum but appears orange to red;
Argon also appears orange to red and
Krypton appears more green and
Xenon is blue - green.
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∙ 12y ago
Wiki User
∙ 16y agoNot to look at they don't but if you pass an electric current through them they will flouresse at particular colours.
Wiki User
∙ 8y agoAll noble gases are transparent unless they are ionized.
Wiki User
∙ 13y agoYes, all Noble Gasses are colourless, odourless gases :)
Wiki User
∙ 10y agoNoble gases do not burn!
They have distinctive spectra with different spectral lines in the visible part of the electromagnetic spectrum.
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∙ 7y agoNoble gasses are inert, they do not form compounds.
Wiki User
∙ 9y agoBecause they don't absorb in the visible frequencies. There's no fundamental reason a noble gas couldn't be colored, it's just that none of them are.
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Noble gases usually exist as what?
Noble gases exist in the nature as gases; only a small number of (all man made) compounds of noble gases are known.
What are gases that do not form compounds with other elements called?
the noble gases
Can noble gases form compounds that occur naturally in the environment?
No, noble gas compounds can only be produced artificially.
What don't the noble gases form?
Noble gases doesn't form many compounds because they are extremely unreactive.
What compounds are formed from noble gases?
Because noble gases are very unreactive only a small number of compounds is known: halides, oxides, salts, especially from xenon. Some compounds are unstable.
The elements that do not ordinarily form compounds are?
Noble gases do not normally form compounds.
Noble gases usually exist as what?
Noble gases exist in the nature as gases; only a small number of (all man made) compounds of noble gases are known.
What are gases that do not form compounds with other elements called?
the noble gases
Can noble gases form compounds that occur naturally in the environment?
No, noble gas compounds can only be produced artificially.
What don't the noble gases form?
Noble gases doesn't form many compounds because they are extremely unreactive.
What compounds are formed from noble gases?
Because noble gases are very unreactive only a small number of compounds is known: halides, oxides, salts, especially from xenon. Some compounds are unstable.
What member of the noble gases has a bright future?
Neon.
What are elements called that do not form compounds?
Noble gases
Elements that do not ordinarly form compounds are?
Noble gases.
Which group of atoms do not usually form compounds?
The noble gases.
What group of elements satisfies the octect rule without forming compounds?
The noble or inert gases.
Are noble gases known for forming salts?
The number of compounds of noble gases is very low; salts derived from xenon are known.
