Uses of noble gases with description please. thanks

1 answer:

6 0

The elements in this group are helium, neon, argon, krypton, xenon, and radon. They are monatomic gases. ... They are extremely rare in nature, and none was known until helium was discovered to exist on the sun. In fact, the name of the element helium was derived from the Greek word Helios, used to refer to the sun.

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Explanation:

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2 years ago

Radium-221 has a half-life of 30 sec. How long will it take for 96% of a sample to decay?

monitta

We can calculate how long the decay by using the half-life equation. It is expressed as:

A = Ao e^-kt

where A is the amount left at t years, Ao is the initial concentration, and k is a constant.
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