Isoelectronic Series Atomic Radius
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Isoelectronic Series Atomic Radius
An isoelectronic series is a series of elements and ions that have equal numbers of electrons. Since they each have the same number of electrons, their periodic trend in atomic radius and ionic radius predicts that the isoelectronic species with the greatest number of protons will have the smallest radius. This is because, according to Coulomb's law, the larger nuclear charge of the species with the greatest number of protons results in an increase in the attraction between between the nucleus and its outermost electrons. This increase in the attractive force brings the outermost electrons in closer to the nucleus, resulting in a smaller radius.
Today's chemistry question of the day:
Which of the following has the largest radius?
A. Sr2+
B. Rb+
C. Kr
D. Br-
E. Se2-
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• Isoelectronic Series Atomic Radius
isoelectronic series
isoelectronic species
isoelectronic species radius
isoelectronic species atomic radius
isoelectronic species ionic radius
isoelectronic series size
isoelectronic series atomic radius