CHEM 1021 Lecture Notes - Lecture 36: Atomic Radius, In C, Isoelectronicity

• School: CU-Boulder
• Department: Chemistry
• Course: CHEM 1021
• Professor: Lynn Geiger

Document Summary

Metals: are reactive if they form cations (lose electrons from the valance shell) easily: most reactive are in the bottom left of periodic table. Nonmetals: are reactive if they form anions (gain electrons into their valance shell) easily: most reactive are in the upper right of the periodic table. Ionization energy (ie): energy required for the complete removal of 1 mole of electrons from 1 mole of gaseous ions or atoms. Atom (g) ion^+ (g) + e^- Ion^+ (g) ion^2+ (g) + e^: atoms with low ie(1) tend to form cations, atoms with high ie(1) (except noble gases) tend to form anions. Clicker question: rank the elements in order of increasing ie(1): si, f, in, n: in