Quantum Theory and the Electronic structure of atoms; 1-the electron configuration of a neutral atom is...
1. Shown below are quantum numbers describing three pairs of orbitals. For a multi-electron atom, indicate which pairs contain orbitals with degenerate energy levels. Briefly explain your answer. Pair I n = 2, ℓ = 1, mℓ = 0 and n = 2, ℓ = 0, mℓ = 0 Pair II n = 2, ℓ = 1, mℓ = 0 and n = 2, ℓ = 1, mℓ = 1 Pair III n = 2, ℓ = 1, mℓ =...
Use the Aufbau procedure to write down the ground state electron configuration of the Br atom. What is an acceptable set of quantum numbers for the very last electron added? Note: Enter fractions as 1/2, 1/3, 2/3, etc. not as decimal numbers. n = ℓ = mℓ = s = ms =
Part A An electron undergoes a transition from an initial (ni) to a final (nf ) energy state. The energies of the ni and nf energy states are −2.420×10−19J and −8.720×10−20 J, respectively. Calculate the wavelength of the light in nanometers corresponding to this transition. You can use the following values for your calculations: Planck′s constant (h) = 6.626×10−34 J⋅s, speed of light (c) = 2.998×108 m/s, and 1 m=109 nm Express your answer in nanometers to four significant figures....
How many electrons in an atom could have these sets of quantum numbers? n=2? n=4 ℓ=1? n=6 ℓ=3 ?ℓ=-1?
Which set of quantum numbers for an electron in the ground state of a neutral atom does not contain an error? A: n = 4, l = 0, ml = -1 ms = +½ B: n = 3, l = 3, ml = 1, ms = +½ C: n = 5, l = 3, ml = -3 ms = -½ D: n = 3, l = 2, ml = 3, ms = -½
Identify which sets of quantum numbers are valid for an electron. Each set is ordered (n,ℓ,mℓ,ms). 3,2,2,1/2 4,3,3,-1/2 3,-2,-1,0 4,3,5,-1/2 0,1,1,-1/2 1,0,0,1/2 1,-1,-1,-1/2 3,0,0,1/2 1,1,0,1/2 2,2,1,1/2 2,0,0,-1/2 1,2,0,-1/2
Which of the following set of quantum numbers (ordered n, ℓ, mℓ, ms) are possible for an electron in an atom? Check all that apply. 2, 1, 0, 1/2 3, 2, 0, -1/2 3, 2, 1, -1 4, 2, 3, -1/2 3, 4, 0, 1/2 3, 1, -2, -1/2 5, 3, -3, 1/2 -4, 3, 1, 1/2
What is the maximum number of electrons in an atom that can have these quantum numbers? a) n-2, m 1 What is the maximum number of electrons in an atom that can have these quantum numbers? a) n-2, m 1
Quantum numbers are used to uniquely identify an electron in an atom. The Pauli exclusion principle states that no two electrons in an atom may have the same set of four quantum numbers List a possible set of four quantum numbers (n,l ,ml ,ms ) in order, for the highest energy electron in gallium, . Refer to the periodic table as necessary. Enter four numbers separated by commas (e.g., 3,2,-2,1/2).
Identify which sets of quantum numbers are valid for an electron. Each set is ordered (n,ℓ,mℓ,ms). Check all that apply. 2,1,-1,1/2 3,-2,-2,-1/2 3,2,-1,-1/2 0,2,1,-1/2 4,3,-4,1/2 2,2,1,-1/2 3,3,-2,-1/2 2,2,1,1/2 3,-2,-1,0 1,0,0,1/2 2,1,0,1/2 4,3,1,-1/2