Metal, Rare earth, Valence or charge transfer

• Ba-Cu-O-Y
• Se-Tm
• Al-Yb
• Ce-Pd
• La-Mn-O
• effective charge
• values of valence or charge transfer
• electron density maps
• valence electron concentration
• average number of 3d electrons
• rare earth
• metal
• lanthanoid
• transitional
• non-disordered
• cubic
• orthorhombic
• tetragonal
• hexagonal
• trigonal