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57 La: 5.18 eV) and ( 89 Ac: 5.17 eV) have only very slightly lower IP's than their preceding elements ( 56 Ba: 5.21 eV) and ( 88 Ra: 5.18 eV), though their atoms are anomalies in that they add a d-electron rather than an f-electron. As can be seen in the above graph for ionization energies, the sharp rise in IE values from ( 55 Cs: 3.89 eV) to (
Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge.Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations.