Topic 2 worksheet Electron Configuration and Periodic Table O Find all possible
ID: 715714 • Letter: T
Question
Topic 2 worksheet Electron Configuration and Periodic Table O Find all possible subshels in nu4 shell and label these subshells. (d) Find the total number of orbitals you can find in shell n 4. Is there a relationship between the total number of orbitals in a shell and the quantum number n for that shell? (e) Do the orbitals in the same shell always have the same energy? Why and why not? 3. The picture below shows a representation of 1s, 2s and 3s orbitals. Answer the following questions 1s 2s 3s (a) Why orbitals drawn become bigeer from 1s, to 2s, to 3s7 what does that mean to electron's motions? (b) Electron is negatively charged and the center of nucleus is positively charged. The interaction between positive and negative charge is given by the Coulomb interaction. The closer the two charges, the stronger the attraction (the lower the energy) is. Follow this argument, how do you predict the energy of 2s orbital compare with 1s orbital? Provide a statementExplanation / Answer
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(A). Here, n=4
Possible values of ‘l’ will be 0 to n-1 i.e. 0, 1, 2, 3
l = 0 (s- subshell)
l = 1 (p-subshell)
l = 2 (d-subshell)
l = 3 (f-subshell)
(B). for a given value of n, No. of orbitals = n2
For n = 4 total no. of orbitals = 16
(c). The energies of orbitals of hydrogen and hydrogen-like particles are dependent upon the value of the principal quantum (n) numbers only so each orbital of a shell will have the same energy.
For multi-electron atoms energy of orbitals depend upon the principal quantum number (n) as well as the azimuthal quantum number (l) Since a shell contains sub energy levels (subshells). For all those orbitals that belong to the same subshell, energy is same and those orbitals that are with same energy are stated as degenerate orbitals and orbitals that belongs to
3. (A) The size of orbitals increases as the distance from the nucleus increases. I.e. orbitals increase in size as the number of the principal energy level increases (n)