CH-1010 Lecture Notes - Lecture 5: Ion, Transition Metal, Noble Gas

• School: Clemson University
• Department: Chemistry
• Course: CH-1010
• Professor: Laura Lanni

Document Summary

Periodic relationships among elements full octet: stable state noble gas read across periodic table when reading electron con guration on periodic table. Copper and chromium a half lled or completely lled sub level reps a lower energy (stability) Cr: has 1 electron in 4s orbital and 5 electrons in the 3d orbital instead of 2 electrons in 4s and 4 electrons in 3d. Isoelectronic: particles that have the same number of electrons and have the same ground state electron con guration nitroge, sodium, magnesium, and uorine isoelectronic w/ neon. Electron con gurations of cations of transition metals (d block) cation is formed from atom of transition metal electrons are removed rst from ns orbital then from the n-1 d orbitals. Electron con gurations of cations and anions of representative elements metals lose electrons so that the cation has a noble gas outer electron con g nonmetals gain electrons to form anions elements try to get noble gas electron con guration.