Planetary_section Terrestrial_planet_chem Planetary_densities Geochemical_reservoirs Orbital_filling_sequence Periodic_table_shells Ionic_radii Ionic_radii_rfm Electronegativities Electronegativity_&_bo0005 WEEK 1 NOTES Bond_ionic_character Pauling_Goldschmidt Pauling_Rules_OK Radius_ratios Close_packing Goldschmidt_Rules_OK Mantle_mineralogy Lanthanide_contraction Chondrite_normalization REE_patterns_1 REE_patterns_2 REE_patterns_3 Handout_2_page_1 Handout_2_page_2