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08-10-2019
Chemistry

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1. What do the numbers 1-18 represent on a periodic table?

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08-10-2019

Answer:

The number for the element group is cited above the top element of each column. The element group values are integers running from 1 to 18. Examples: Hydrogen belongs to element group 1. Beryllium is the first element in group 2.Explanation:

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