Which element tends not to react with other elements?

Which element tends not to react with other elements?

(1) helium

(2) hydrogen

(3) phosphorus

(4) potassium

Solution and Explanation:

If we look at the Periodic Table, there is one group of elements that consists of very stable and unreactive elements. This group is called noble gases and is group 18. The elements in group 18 are found by themselves in nature, and tend not to react with other elements.

Now, all we need to do is find which of the following elements is found in group 18.

That element is helium, choice 1, and is therefore the correct answer.

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