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Which noble gas is the lightest?

Answer

Helium.
Q&A Related to "Which noble gas is the lightest?"
Helium is the lightest of the noble gases. Thanks for using ChaCha.
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A noble gas is any of the chemically inert element gases found in the helium section of the periodic table. These include helium, neon, argon, krypton, xenon and radon.
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How to Do Noble Gas Notation with the Periodic Table. The noble gases are a group of famously non-reactive elements found in group 18 on the Periodic Table of Elements. The gases
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Explore this Topic
Neon is found in the Earth's atmosphere. Neon is the second-lightest noble gas discovered by William Ramsay and Morris Travers in 1898. ...
Neon's state of matter is a gas substance. It is nonmagnetic and is considered the second lightest noble gas. The color that neon glows in is a reddish-orange. ...
Neon is the second-lightest noble gas, which glows reddish orange in a vacuum tube, thus, the discovery of the neon lights. It has also been used to create lightening ...
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