Question

27. Calculate the energy U) change associated for an electronic transition in a Bohr hydrogen atom from n-3 ton - Is the energy absorbed or released? -1.94 10 18 absorbed -8.9010; no change 3.90 x 10-19, released - 194 10- 18released -3.90 x 10-19 absorbed Question 28 1 pts 28. Use the definition of Pouli Exclusion Principle to identify which electron configuration below represents a violation of the Pauli Exclusion Principle? 1s 2s 2p 3s1 1s 2s 2p 3s 1522s2p 3s 1s22s22p 3s 12:22 D Question 29 MacBook Pro 8 IwER Tuo sofo х с

Answer 1

27 The ah eleeton in orbit ols ene1g1 atom 2.ves 2 T 2 mez2 En -13.6 h2 4ITE)2 n2 Since for hydogen Z - 13. 6/n2 ev -13. EneT9 of elect on in 3dl Bohis or bit ev 3 2 ev 1S Energy ab eleetron in Is Bohis 0r bit=-13-6 13% ev 11 Energy on tran si tion E e 3-E - 151ev- -13 ev) - 'Sev + 13 6 ev 12 0 ev ehe in ouls 12.09 X 1601 X1o Joul 3.37X 1o19 94 x1018 J C lev 601x9 JJ lenever 94 X1513, released releaed Sign option

Option 3rd 2 p 3s Qus-8 iolate Pouli Exeluion Prines ple s22s3) 9t is impossible for two eleet on to haue the Same value of all the four uantumnumbers in So 2 S 1L0 Not possible as 2 S it iz Qus 29 Ans option-and Is222 2p,3s23p 4s only bassible non exited aleetronic eenfigaration Qus -38 Hunds Tule ,- E very orbital is a sub shetN electron beforR in singly oecupied with one orbital subshul i doubled any one stant onty after fulfiting b Sab shell ne eleeton each option Answex 2. 2s2