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Chapter 5: Problem 70

For any representative element, what is the relationship between the element's Romannumeral group number and the number of dots in the Lewis dot diagram?

Short Answer

Expert verified
The relationship between an element's Roman numeral group number and the number of dots in its Lewis dot diagram is that they are equal. Both the group number and the number of dots in the Lewis dot diagram represent the number of valence electrons of the element.

Step by step solution

01

Determine the Group Number of the Element

To do this, find the element in the periodic table and identify its group number based on the Roman numeral given at the top of each group.
02

Valence Electrons

The group number also corresponds to the number of valence electrons (the electrons in the outermost electron shell). For example, elements in Group I (Group 1) have one valence electron, elements in Group II (Group 2) have two valence electrons, and so on.
03

Lewis Dot Diagram

Draw a Lewis dot diagram for the element, placing dots around the element symbol to represent its valence electrons. The number of dots should be equal to the valence electrons of the element (which correspond to its group number).
04

Relationship Between Group Number and Lewis Dot Diagram

The relationship between the element's Roman numeral group number and the number of dots in the Lewis dot diagram can be determined by the fact that the group number is equal to the number of valence electrons, which is also equal to the number of dots in the Lewis dot diagram. In conclusion, the relationship between an element's Roman numeral group number and the number of dots in its Lewis dot diagram is that they are equal, as both represent the number of valence electrons of the element.

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