Whether there is a strong field or weak field the first three electrons must go unpaired into the three low energy orbitals. Solution for Determine the number of unpaired electrons in an atom of N (#7). Which of the following transition metals of 3 series has the lowest melting point? So in the ground state the electrons being lost should be the 3d electrons. a.) It would of had 2 unshaired electrons but since it has a plus 2 charge it lost 2 electrons which made it drop to the 4s sublevel and it completely fills it. Select Page. Ni has an electronic configuration of 4s2,3d8 therefore, Ni2+ has an electronic configuration of 4s0, 3d8. Explanation: N(7) = 1s²2s²2p² N2⁺ = 1s², 2s², 2p unpaired electrons =1. Calculate the number of unpaired electrons and LFSE of [PtCl 6] –2 ion . 1 unpaired electron. We know that in a p orbital series, there are a total of 3 sublevels or orbitals. 1 b.) 800+ VIEWS. and according a hunds rule to fill the all electrons last 2 box in d partially filled. That means that answer 3 is correct. Which has the greatest number of unpaired electrons in the ground state? • • We can calculate the number of unpaired electrons based on the increase in weight. (A) Zero (B) 2 (C) 4 (D) 8. BOOK FREE CLASS. Can you explain this answer? (A) Zero (B) 2 (C) 4 (D) 8. according to your question is mine answer is => here are 2 unpaired electrons in Ni2+ because E.C. For example, the element P, has an atomic mass of 15. Write orbital diagrams for each of these ions. Cloudflare Ray ID: 5ed8c12b7870f9ce 3 unpaired electrons. 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