Inert means not able to move, or moving sluggishly. It can also be a chemical that does not react with other substances. Here are some sentences.
Inert means "still".
The inert gas had no effect on the experiment. The bomb was inert and failed to explode.
Nitrogen is an inert gas; it is non-reactive in chemical situations.
Helium is an inert gas, and seldom reacts with other elements. After the explosion, they discovered the inert bodies of the two guards. The inert Lunar Rover is still parked at the landing site of Apollo 17, awaiting a new battery and a new driver.
inert gas
The inert man lay in his bed all day and had no contact with the world outside his house. Keep in mind that inert doesn't mean lazy. It means that the subject keeps to itself.
Helium is an inert gaseous element. This is a sentence using the word "element".
No, helium is an inert gas and does not readily undergo chemical reactions. It is not a good reducing agent as it does not have the ability to donate electrons to other substances.
Good guess, poor grammar.
There is a high probability that this sentence will not qualify as a good sentence.
Helium is a colorless, odorless, and tasteless inert gas that is used in various applications such as in balloons for parties and in cryogenics for cooling superconducting magnets.
Inert means they don't react. Group 18, the noble gases, are inert.