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The answer to this is neon.

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Q: What is a noble or inert gas used in street signs?
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What noble or insert gas is used in street signs?

A noble gas is inert. However they sometimes sodium ions or mercury vapor.


What is the definition of neon?

the chemical element of number 10; an inert gaseous element of the noble gas group. It is obtained by the distillation of liquid air and is used in fluorescent lamps and signs


This noble gas is frequently used as an inert atmosphere when welding?

helium


What gas is used inside a light bulb?

An inert noble gas is used inside light bulbs.


Are inert gases and royal gases the same?

'Royal gas' is not a term used in chemistry. Perhaps you mean "noble gas", if so yes "inert gas" and "noble gas" often mean the same thing. However, oxides and fluorides of some of the "noble gasses " do exist, it might be best to think of them as "noble" rather than "inert". Xe, forms oxides.


What are that 2 noble gases used to protect during welding?

Helium and argon are used as inert gases in welding.


What are inert gases?

Inert gases are the noble gases (He, Ne, Ar, Kr, Xe, and Rn). They used to be called the inert gases until Neil Bartlett proved that you could make compounds out of some of them, so they were renamed "inert" gases.


Which elements is used for noble gas used in signs?

Neon and sometimes argon


What is one use of the noble gas that relies on the fact that it is unreactive?

Noble Gases are useful because they make up chemical elements.


Which element is in illuminated signs?

The noble gases are used in illuminated (aka Neon) signs. Refer to the related link to see an illustration of the colors made by the different noble gases.


What are the elements in Group 17-18 called?

The Group 18 elements are called the noble gases or sometimes inert gases. Wikipedia has information on the noble gases, and a link is provided.


Why is considered that the noble gas is inert gas?

Noble gases are considered inert because they have a full outer electron shell, making them stable and unlikely to undergo chemical reactions. They do not readily form compounds or ions with other elements due to their low reactivity. This stable electron configuration is the reason why noble gases are used in various applications, such as lighting, lasers, and filling balloons.