Answered

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What does the number of groups show you the number of?...in the outer shell?

Sagot :

14amavanessaidn

Answer:

electrons

Explanation:

The group number tells you the number of electrons in the element's outer shell (or valence shell).

Extra info: Elements with the same number of electrons on their outer shell are grouped together in the periodic table because they have similar properties.

Hope this helps!

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