You need to:
- show your work with the solution (use an embedded image or the Σ Graphical Equation button on the Text Editor), and explain in text form how you approached and worked through the problem.
- explain in the text how you approached and worked through the problem
21. Using the Bohr model, determine the lowest possible energy for the electron in the He+ ion.
22. Using the Bohr model, determine the energy of an electron with n = 6 in a hydrogen atom.
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Order Paper Now77. Based on their positions in the periodic table, list the following ions in order of increasing radius: K+ , Ca2+ , Al3+, Si4+ .
84. The ionic radii of the ions S2–, Cl– , and K+ are 184, 181, 138 pm respectively. Explain why these ions have different sizes even though they contain the same number of electrons
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