a. Which states of a hydrogen atom can be excited by a collision with an electron with kinetic energy K = 12.5 eV? Explain.b. After the collision the atom is not in its ground state. What happens to the electron? (i) It bounces off with K > 12.5 eV, (ii) It bounces off with K = 12.5 eV, (iii) It bounces off with K < 12.5 eV, (iv) It is absorbed by the atom. Explain your choice.c. After the collision, the atom emits a photon. List all the possible nS m transitions that might occur as a result of this collision.

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Q: If a hydrogen atom undergoes a transition from n = 1 (E = 4.17 x 10-19 J) to n = 3 (E = 8.62 x 10-19…

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A: (n,l,m) = (5,3,1)using formula, cosθ = Lz/L = m /l(l+1)

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The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: