Question detail

Which noble gas has only two electrons in its outer shell?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

The periodic table

Question

Helium

Helium is unique among the noble gases as it has only two electrons in its outer shell, while others have eight.

Misidentifying Noble Gases

Students often confuse noble gases with other groups, thinking they are reactive like alkali metals.

Remember that noble gases are in Group 0 and are characterized by their stable electron arrangements, making them unreactive.

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