Question

Select the pairs of atoms that have the same total number of d electrons. Select all that apply. Ca and Cr O Mo and Tc Cu and Zn Ge and Kr Question 4 1 pts Consider the electron configurations and orbital diagrams of the neutral atoms when answering these questions. 1. Which of the following pairs has Zero unpaired electrons for each atom? [Select] 2. Which of the following pairs has 1 unpaired electron for each atom? [Select] 3. Which of the following atoms has 2 unpaired electrons? (Select] 4. Which of the following atoms has 3 unpaired electrons? (Select] 5. Which of the following atoms has 4 unpaired electrons? (Select] 6. Which of the following atoms has 5 unpaired electrons? [Select] 7. Which of the following atoms has 6 unpaired electrons? [Select]

options for

1) Cd &Ni, Mg &Zn, Sr &Sc, None

2) none, Na and B, Sc and Mg, He and H

3) V, B, Si, None

4) C, S, P, none

5) Tc, Ru, Mo, none

6) Mo, Ru, Tc, none

7)Mo, Ru, Tc, none

Answer 1

Electronic configurations of Ca = 15%25%2p@3s²3p452 Electonic configuration of cr = 15282p6 35°3p$45'305 Number of d-electrons in ca=o Number of d-efedrong in evő 24 * Electronic configuration of Tc , = 1833°2p%35'3p453d14 Electronic configuration of Mo = 1s 2sžpßs’spaszd 4 Possed 42 Number of d-electrons in Tc = 152 Number of d-electrons in Mo=15 ( equal ic 29 on 30 * Electronic Configuration of qu: 15 s'ap@3s'šp+48'3d" 37: 18*8*8*8*30483d" Number of d-electrons in cu=10 2 caval in zn = 10 } equal * Electronic configuration of Ge : 15253p635°3p8453d mp3 Ky : 1528°3p%35'3p453d"4p6 32 36 Number of d-electrons in Ge=107s 6 same in kra 105 The pairs that have the same total number of the d-electrons, are o Mo and To Ge and kr. Cu and in

1) Electronic Configuration Cd: [kr]40055? Nie: [141]3d845? Number of unpaired electrons J 171 172/7174/12] [2 mpango ( [t/a1111111 484 4d 55 3d or 2- unpaired ēs. vo cinmg : [Ne]352 (l Number of unpaired ) 35 electrons =0 zn: [A] 453d" | 72) 11111111L 1L 45 30 Number of unpaired 25=0 Sr! [kv]552 → Z zero unpaired ēs. Sc: [Ar] 453d' L 111 1N one uppa 21 4s 3d electron 38 mg and zn both have zero unpaired ēs. 2) Na : [ne]3s' "SB! [he] 2522p! ? Both have Lunpaired ( electron. S. 2P 3d 3) sc: [Ar]38452 LIVE - has 1-comparire Leg: [ne]35 TL has zero unpaired ) He: 152 - He has zero unpaired electrons TH:15' = H has one unpaireef electron. electrons. ,'. Na and B have 1 unpaired eleetrone

3) Vi [Ar]3d3452 (TINN 160 unpaired es = 3 5B : [he]2s22p! 1 0 impaired ēs = 1 si: [ne] 353p2 The 91910} Two unpaired electrons ..Si - has 2 unpaired electrons 14 4 only 2-unpaired Cilik ]253p2 : IcS; (Ne] 35%3pt isp: [ne] 33%3p3 vo 9 These two have 41 s Mestress. 019has 3-unpaires 3P electrons ii P-has 3-tempaired electrong