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← ScienceWhich consequence results when applying high pressure on cerium?
A)4f electrons delocalize and hybridize✓
B)Valence electrons become more localized
C)Electron orbitals exhibit paramagnetism only
D)Energy gap of orbitals is intensified
💡 Explanation
Compressing Cerium causes delocalization because the applied pressure induces band broadening, where the 4f electrons gain kinetic energy exceeding their potential energy; therefore, the 4f orbitals delocalize and hybridize to form an itinerant band, rather than remaining localized due to high electron-electron repulsion.
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