Problem: Write the Lewis symbol for As 3–.

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Lewis dot symbols are based on the number of valence electrons of an element or ion. In writing a Lewis dot symbol, we place one dot (which signify an electron) on each side until we place the # of valence electrons for the element or ion.

Recall that for main-group elements, the # of valence electrons = Group Number.

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Write the Lewis symbol for As 3–.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Lewis Dot Structure concept. You can view video lessons to learn Lewis Dot Structure. Or if you need more Lewis Dot Structure practice, you can also practice Lewis Dot Structure practice problems.

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Based on our data, we think this problem is relevant for Professor Brush's class at FSU.

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Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.