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2 years ago

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

Chemistry

2 answers:

Lorico [155]2 years ago

6 0

Answer:

Column 17 halogens

Explanation:

I took the test and got it correct.

valina [46]2 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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3 years ago

HELP PLEASE THE OTHER 'ANSWER' ISNT EVEN AN ANSWER!

hodyreva [135]

Answer:

most likely that (2) the replicated experiment was performed incorrectly.

Why, u ask? u dare question me:

1- The initial experiment invalidness cannot be proven.

2- the second answer is correct

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2 years ago

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2 years ago

What will be the charge of an atom containing eight protons, nine neutrons, and 10 electrons?

Wittaler [7]

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2 years ago

I need it please !!!

anyanavicka [17]

Answer:

im pretty sure its 2...

Explanation:

if its wrong im sorry

if its right brainliest pls?

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2 years ago