Sizes of IonsSizes of IonsSlide 3Ionization EnergyFirst Ionization EnergiesFirst Ionization EnergiesElectron AffinityMetalsNonmetalsMetalloidsMetallic CharacterSizes of IonsChapter 7 1Chapter 7 2Sizes of IonsIn an isoelectronic series, species have the same number of electrons.Chapter 7 3Arrange the following species in the expected order of increasing radius: Ca2+, Mg2+, K+, S2–, Se2–.Chapter 7 4Ionization EnergyThe ionization energy is the amount of energy required to remove an electron from a gaseous atom or ion.First Ionization EnergiesChapter 7 5First Ionization EnergiesChapter 7 6Chapter 7 7Electron AffinityThe electron affinity is the energy change accompanying the addition of an electron to a gaseous atom or ion.Chapter 7 8MetalsMetals tend to be lustrous, malleable, ductile, and good conductors of heat and electricity.Chapter 7 9NonmetalsNonmetals are dull, brittle substances that are poor conductors of heat and electricity.Chapter 7 10MetalloidsMetalloids have some characteristics of metals and some of nonmetals.Chapter 7 11Metallic
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