Question

An electron on an energy level has an energy of 16.32 x 10-19 J. It moves to another level by releasing 5.4 x 10-19 J of energy. Which of the following descriptions mostly likely explains
what occurred?
The electron moved down to an energy level and has an energy of 10.92 x 10-19J.
The electron moved down to an energy level and has an energy of 21.72 x 10-19 J.
The electron moved up to an energy level and has an energy of 10.92 x 10-19 J.
The electron moved up to an energy level and has an energy of 21.72 x 10-19 J.

Answer 1

From the information provided in the question, we can see that; the electron moved up to an energy level and has an energy of 21.72 x 10-19 J.

Bohr's model of the atom tells us that electrons are found in certain specific energy levels. Energy is absorbed when an electron moves from a lower to a higher energy level and energy is released when an electron moves from a higher to a lower energy level.

Given that;

ΔE = E2 - E1

E2 = final energy level

E1 = initial energy level

E2  = ?

E1 =  16.32 x 10-19 J

ΔE =  5.4 x 10-19

E2 = ΔE + E1

E2 = 5.4 x 10-19 + 16.32 x 10-19 J

E2  = 21.72 x 10-19 J

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