Ionization energy, what's needed to remove 1 electron from 1 atom, is high for this non-reactive 6-element group
[DOC] [TLE] High School Chemistry/Ionization Energy - Wikibooks, open books ... [PAR] 1 Lesson Objectives; 2 Ionization Energy is the Energy Required to Remove ... 
With the Trend in Ionization Energy; 5 Lesson Summary; 6 Review Questions; 7 
Vocabulary ... a lithium ion can be formed from the lithium atom by losing one 
electron.