The Bohr model predicts discreet electron energy levels, some of which are given by: En = −RH(Z2 / n2) (a) Define each variable in words: En, RH, Z, and n. When can the equation above be used? (b) Calculate the energy difference between the first and fifth principal energy levels of the Li2+ ion. Draw an energy-level diagram, annotating the levels with any pertinent information. (c) How does the energy you calculated in (b) compare with energy difference for the same transition in the Be3+ ion?
Atomic Structure
The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.
Shape of the D Orbital
Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.
The
En = −RH(Z2 / n2)
(a) Define each variable in words: En, RH, Z, and n. When can the equation above be used?
(b) Calculate the energy difference between the first and fifth principal energy levels of the Li2+ ion. Draw an energy-level diagram, annotating the levels with any pertinent information.
(c) How does the energy you calculated in (b) compare with energy difference for the same transition in the Be3+ ion?
(d) A Li2+ electron drops from n = 5 to n =1. What is the Δ? associated in this transition? Will this require the absorption of or result in the emission of a photon? Add an arrow to your diagram in (b) to show the movement of the electron and a photon (incoming or exiting) describing this process. What is the frequency and wavelength of the photon?
(e) What energy of photon is needed to remove an electron from the n = 1 level of Li2+ with a velocity of 500,000 m/s?
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