A transition element X has a configuration (Ar)3d4 in its +3 oxidation state. Its atomic number is (a) 25 (b) 26 (c) 22 (d) 19 A transition element X has a configuration (Ar)3d4 in its +3 oxidation state. Its atomic number is (a) 25 (b) 26 (c) 22 (d) 19 November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related