What is the electronic configuration of O² ?O 1s°252p 3s?O 1s°25 2p6O 1s°25 2p4

The number of electrons in neutral atom is equal to its atomic number while in charged atom the…

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Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter3: Atomic Shells And Classical Models Of Chemical Bonding

Section: Chapter Questions

Problem 7P

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28. If the atomic number of an element X is 11 and that of nitrogen is 7, the most likely formula of the nitride of X is? 29. pH2O2------->qH2O + O2. What are the values of p and q respectively? C. The elements listed below belong to the same group in the periodic table: F9Cl17 Br35I53 37. Write the modern electronic configuration of the first member. ________________________________________________________________________ 38. What is the family name of the element? ________________________________________________________________________ 39. Which of the elements has the strongest oxidizing ability? ________________________________________________________________________
Write the complete ground-state electro configuration of Ti2+
What is the correct electronic configuration of Y2+
Group the electronic configurations of neutral elements in sets according to those you would expect to show similar chemical properties. 15²2s²2p²38²3p³ 1s²2s²2p³: Set A 1s²2s²2p 3s²3p: 15²25²2p% 15² 3400 4p/5 1s²2s22p 3s23p648²3d¹04p6: 1s²2s²2p638²3p³: Answer Bank Determine the chemical symbols for the neutral elements corresponding to the electronic configurations. Use proper formatting; letter case matters. 1s²2s²2p³ 35²3p² 13²23²2p³ Set B
although we associate Pz 2. Now we will move on to diatomic molecules. In atoms all p-orbitals are equivalent with m/= 0, and px py with m/= ±1. In diatomic molecules these orbitals are in fact separated, with pz associated with o orbitals along the internuclear axis and px py associated with л orbitals (m/= ±1). In determining electron configurations we do indeed separate them: N₂ (KK¹ 0₂²). and O2 (KKogu ng *2). 4 a. Two excited states of N₂ are associated with Tu transitions. Tg and og → ou* i. Draw the MO energy level scheme (p-orbitals only) for the N₂ ground state and for these two excited states. ii. Obtain the term symbols for the two excited states and order them according to Hund's rules. iii. Write the wave functions for each of the terms obtained in ii) above. iv. Pick one wave function from each excited state and show it obeys the Pauli Principle.
The pi electrons in an eight-carbon polyene (CH2=CH-CH=CH-CH=CH-CH=CH2) can be modeled as a one-dimensional particle in a box of length 1nm. a. What are the values of the quantum number n for the highest occupied (HOMO) and lowest unoccupied (LUMO) energy level based on the number of pi electrons in this molecule? HOMO n= LUMO n= b. Predict the wavelength of light that would be absorbed in order to induce an electronic transition between the HOMO-LUMO gap. In what region of the electromagnetic spectrum would this transition fall? ΔΕ = λ =
When β-carotene is oxidized in vivo, it breaks in half and forms two molecules of retinal (vitamin A), which is a precursor to the pigment in the retina responsible for vision. The conjugated system of retinal consists of 11 C atoms and 1 O atom. In the ground state of retinal, each level up to n = 6 is occupied by two electrons. Assuming an average internuclear distance of 140 pm, calculate (a) the separation in energy between the ground and first exciteted state in which one electron occupies the state with n = 7, and (b) the frequency of radiation required to produce a transition between these two states. From your results, correct the following sentence (from the options in brackets). The absorption spectrum of a linear polyene shifts to (higher/lower) frequency as the number of conjugated atoms (increases/decreases).
An atom Q has six valence electrons and forms a stable Q3+ ion. What is the electronic configuration of atom Q?
What is the energy difference between the F2 molecule and the separated atoms? Express your answer in kilojoules per mole to three significant figures. 5 ΑΣΦ Energy difference = ? kJ/mol
Choose the electron configuration that is most appropriate for nitrogen monochloride (NCl).Choose one: (?σ2s)2(?σ*2s)2(?σ2p)2(?π2p)2(?π*2p)4 (?σ2s)2(?σ*2s)2(?σ2p)2(?π2p)4(?π*2p)1 (?σ2s)2(?σ*2s)2(?σ2p)2(?π2p)4(?π*2p)2 (?σ2s)2(?σ*2s)2(?σ2p)2(?π2p)2(?π*2p)3
Write the complete ground-state electron configuration of Pb²⁺, Pb⁴⁺, Ru³⁺. For multi-digit superscripts or coefficients, use each number in succession. Using: 1 2 3 4 5 6 s p d f ☐¹ ☐² ☐³ ☐⁴ ☐⁵ ☐⁶ ☐⁷ ☐⁸ ☐⁹ ☐⁰
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What is the electronic configuration of O- ? O 1s2252p 3s? O 1s°25 2p6 O 1s°25°2p4