Question

▼Part A Classify each of these ions as diamagnetic or pa Drag the appropriate items to their respective bins. View Available Hint(s) Reset Help Diamagnetic Paramagnetic 2n2 Previous Answers Submit Incorrect Try Again; 2 attempts remaining You sorted 3 out of 4 items incorrectly. An atom or ion with an odd number of electrons cannot be diama Gouy balances

Answer 1

Atomic number of Cobalt 27 Electronic configuration of Co- 1s2 2s22p#3s23yMs23d7 Electron configuration of Co : 1s"2s"2p"3s 3p 2 2 6 26 3d Thus, there are 3 unpaired electrons in Co Since there are 3 unpaired electrons, the material is paramagnetic Atomic number of nickel Ni- 28 Electronic configurati on of Ni-1s2s 2p 3s13p°4s 3d Electron configuration of Ni: 1s"2s*2p 3s-3 3d8 Thus, there are 2 unpaired electrons in Ni Since there are 2 unpaired electrons, the material is paramagnetic Atomic number of copper (Cu)-29 Electronic configurati on of Cu -1s22s22p63s 3p64s13d10 Electron configuration of Cu2+ . Îs22s22p"3s23p 3d9 Thus, there is 1 unpaired electron in Cu* Since there is 1 unpaired el ectron, the material is paramagneti c Atomic number of zinc (Zn) 30 Electronic configurati on of Zn1s2 2s22p6323p*4s23d10 Electron configuration of Zn*: 1s*2s 2p°3s3p 3d10 Thus, there are no unpaired electrons in Zn Since there are zero unpaired electrons, the material is di amagnetic Diam agnetic Paraagnetic Zn Ni L1