7) Adding one or more electrons to a neutral atom forms an anion (an ion with negative charge). Removing one or more electrons from an atom forms a cation (an ion with positive charge). Why is the radius of an anion always larger than the neutral atom it was formed from? Explain why is this different than the trend in, for example, the 3p neutral atomic series shown below where electrons are added but the radius decreases. Atoms with increasing number of 3p electrons 0000 s)(c) (Ar Al si )( P S CI

Chemistry: Matter and Change
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Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
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Chapter6: The Periodic Table And Periodic Law
Section: Chapter Questions
Problem 66A
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7) Adding one or more electrons to a neutral atom forms an anion (an ion with negative
charge). Removing one or more electrons from an atom forms a cation (an ion with
positive charge). Why is the radius of an anion always larger than the neutral atom
it was formed from? Explain why is this different than the trend in, for example, the
3p neutral atomic series shown below where electrons are added but the radius
decreases.
Atoms with increasing number of 3p electrons
Al
Si
P
S
s )( ci )( Ar
CI
Transcribed Image Text:7) Adding one or more electrons to a neutral atom forms an anion (an ion with negative charge). Removing one or more electrons from an atom forms a cation (an ion with positive charge). Why is the radius of an anion always larger than the neutral atom it was formed from? Explain why is this different than the trend in, for example, the 3p neutral atomic series shown below where electrons are added but the radius decreases. Atoms with increasing number of 3p electrons Al Si P S s )( ci )( Ar CI
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