Part J Electronic Configuration, Periodic Table and periodic trends 4 slides per page

ga3 ca2 ba2 cs sn3 2 s br cl se2 ionization

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Unformatted text preview: erefore increase in size 8 1/28/2014 Ionic and Atomic Radii • Arrange these species in order of increasing radii: 1.) Ga3+, Ca2+, Ba2+, Cs+ , Sn3+ 2.) S, Br -, Cl, Se2- Ionization Energy First Ionization Energies • First ionization energy (IE1) – The minimum amount of energy required to remove the most loosely bound electron from an isolated gaseous atom to form a 1+ ion. • Symbolically: Atom(g) + energy → ion+(g) + e- Na(g) + 496 kJ/mol → Na+(g) + e- + 496 kJ + e- + 496 kJ + 9 1/28/2014 Ionization Energy • Second ionization energy (IE2) – The amount of energy required to remove the second electron from a gaseous 1+ ion. • Symbolically: ion+ + energy → ion2+ + e- 1st IE: 2nd IE: Mg + 738 kJ/mol Mg+ + eMg+ + 1451 kJ/mol →Mg2+ + e- - Atoms can have 3rd (IE3), 4th (IE4), etc. ionization energies - The next ionization energy is generally larg...
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