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3 years ago

Which of the following groups have seven valence electrons and are very reactive?

Chemistry

2 answers:

Lorico [155]3 years ago

6 0

Answer:

Column 17 halogens

Explanation:

I took the test and got it correct.

valina [46]3 years ago

4 0

Answer:

Column 17 halogens

Explanation:

To answer the question we need to know the following;

What are valence electrons?

Valence electrons are outermost electrons in the outermost energy level of an atom of any element.

What are halogens?

Halogens are group 7 elements that have seven valence electrons. They include, chlorine, fluorine, iodine, etc

What is the reactivity of halogens?

Halogens are the most reactive non-metals in the periodic table. They react by gaining one electron to attain a stable configuration.

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Answer:

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White raven [17]

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lidiya [134]

Answer:

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Explanation:

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