High School Chemistry : Identifying Types of Elements

Study concepts, example questions & explanations for High School Chemistry

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Example Questions

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Example Question #21 : Identifying Types Of Elements

Which of the following is not true of alkali metals?

Possible Answers:

Alkali metals are very reactive.

Alkali metals are very likely to form anions by gaining electrons from another atom.

Alkali metals are generally softer than other metals. 

All alkali metals are found in group 1.

Alkali metals have one valence electron.

Correct answer:

Alkali metals are very likely to form anions by gaining electrons from another atom.

Explanation:

Alkali metals are all in group 1, which means they all have only one valence electron. They are highly reactive and will give their one electron to another atom. This is the easiest way for alkali metals to achieve the octet rule. 

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