CHEM 1A Study Guide - Midterm Guide: Ionic Radius, Covalent Radius, Atomic Radius
Document Summary
Atomic radius atomic radius : half the distance between the centers of neighboring atoms. Newly addled electrons to same shell makes the atomic radius smaller. Ionic radius ionic radius : the contribution of an ion to the distance between neighboring ions in a solid ionic compound. Radii of ions increases down a group because the core electrons occupy shells with higher principal quantum numbers isoelectronic : having the same number of atoms and the same number of valence electrons: g . But radii differ because of different nuclear charges. May have same electron configurative nude,ar charge f effective nuclear charge total charge of a nucleus net charge that an outermost shell electron experiences. Ionization energy ionization energy : the minimum energy needed to remove an electron from an atom in the gas phase. I , the gas phase: g . Cuc g) cut c g ) t e.
