epitu
01-15-2020, 08:47 AM
electron configs (more)!?Yttrium Arsenic Neon Aluminum You should know how to figure these outFind the noble gases on the periodic tableFor the third one find heliumThe electron configuration you listed tells you the compound has the noble gas electron configuration of Helium plus 2 electrons in the 2s orbital and 6 electons in the 2p orbitalsThats 8 more electrons than HeliumHelium is element 2, it has 2 total electronsNeon has 8 more, for a total of 10Hope this helps.Other related question