ChemistryEasy158×since 2002Q808The outer electron configuration of GdGdGd (Atomic No. 646464) is :A4f3 5d5 6s24{f^3}\,5{d^5}\,6{s^2}4f35d56s2B4f8 5d0 6s24{f^8}\,5{d^0}\,6{s^2}4f85d06s2C4f4 5d4 6s24{f^4}\,5{d^4}\,6{s^2}4f45d46s2D4f7 5d1 6s24{f^7}\,5{d^1}\,6{s^2}4f75d16s2Check answerSkip