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The energy levels the electron can occupy in the Be3+ ion can be calculated using the energy level equation. A Be3+ ion with an electron in the n= 3.00 level emitted a photon with a frequency of 7.30 × 1015 Hz. What is the value of the level n for the new energy?

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E = h*frequency = ?
E =? = 2.18E-19 x Z^2 (1/x^2 - 1/3^2)
Z is 4 for Be^3+
Solve for x, the new energy level. I believe the answer is 2.

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