Which element is most commonly found as a negatively charged ion? Ne - 0 Li - +1 Al - +3 Cl - -1 Ca - +2 A 100 Which element is isoelectronic with Mg2+ Ne Li Al Cl Ca A 200 Isoelectronic elements have the same electron configurations ? that means they must have the same number of electrons Which element is found as a diatomic gas in its uncombined state? Ne Li Al Cl Ca A 300 You have memorized the diatomic gases: H, O, N, Cl, Br, I, F. Make a study card for these if you need to review and re-memorize! A 400 A 500
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