Problem: How many inner, outer, and valence electrons are present in an atom of each of the following elements?(a) Br

FREE Expert Solution

Outer electrons are those belonging to the last energy level while inner electrons are those belonging in inner energy levels. Valence electrons are outer electrons that can participate in chemical bonding.

For main-group elements, the number of outer electrons and valence electrons is the same as the group number. From this, we can just subtract the number of outer electrons from the atomic number Z to get the number of inner electrons.

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Problem Details

How many inner, outer, and valence electrons are present in an atom of each of the following elements?
(a) Br

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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 Electron Configuration concept. You can view video lessons to learn Electron Configuration. Or if you need more Electron Configuration practice, you can also practice Electron Configuration practice problems.

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.