CHE 131 Chapter Notes - Chapter 8: Effective Nuclear Charge, Covalent Radius, Alkali Metal

• School: Stony Brook University
• Department: Chemistry
• Course: CHE 131
• Professor: Troy Wolfskill

Document Summary

Atomi cpropoerties directly influenced by electron configuratin and effective nuclear. Atomic size, ionization energy and electron affinity. These properties are periodic, and exhibit changes or trands within a group or period: trends in atomic size. Usually we represent atoms w spherical contous s where the electons mostly are. Atomic size- the extent of the countour, defined in terms of how closely one atom lies to another atomic size varies from substance to substance. Actually, the distance is measured in an elemetn and then divided by half. Bc atoms dont have hard surfaces, their size depedns on whats arpund it and. Metallic radius- one half the shortest distnace btween nuclei of adjacent, individual. Covalent radius- one half the shortest distance bw the nuclei of bonded atoms. Radii measured for one element can be used to find the radii of another atoms in a crystal of the element.