Question

Identify the second noble gas...

From the given scientific information.......

Scientific Information......

Hydrogen is the lightest, most abundant and explosive gas on Earth. Fluorine is the
most reactive and most electronegative of the elements, making elemental Fluorine a
dangerously powerful Oxidant. This leads to direct reactions between Fluorine and
most elements, including noble gases Krypton, Xenon and Radon. There are 17 gases
in total, which can be found in the natural atmosphere on Earth. Only Oxygen and
Nitrogen are found in large concentrations; 20.9476% and 78.084% respectively.
Oxygen concentrations below 16% are considered unsafe for humans.​

Answer 1

Answer:

helium, argon

Explanation:

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