Question 1

According to the Bohr Model, what does the principal quantum number $$n$$ represent?

Accepted Answer

The energy level or shell in which an electron resides

Question 2

In the Bohr Model, which electron has the highest potential energy?

Accepted Answer

An electron in the $$n=6$$ shell

Question 3

Which electron transition represents absorption of energy?

Accepted Answer

$$n=1 to$$ $$n=3$$

Question 4

Which electron transition represents emission of energy?

Accepted Answer

$$n=3 to$$ $$n=1$$

Question 5

Which electron transition represents absorption with the greatest energy?

Accepted Answer

$$n=1 to$$ $$n=4$$

Question 6

If an electron moves from $$n=4 to$$ $$n=2$$, what type of process is this?

Accepted Answer

Emission

Question 7

Which of the following best describes the relationship between shell number $$n$$ and the distance from the nucleus?

Accepted Answer

As $$n$$ increases, the electron is farther from the nucleus

Question 8

Which transition would result in the emission of the highest energy photon?

Accepted Answer

$$n=3 to$$ $$n=1$$

Question 9

In a medical imaging technique, electrons are excited from $$n=2 to$$ $$n=5. $$What process is occurring?

Accepted Answer

Absorption

Question 10

Which of the following transitions would require the least amount of energy?

Accepted Answer

$$n=1 to$$ $$n=2$$

Question 11

If an electron in a hydrogen atom absorbs energy and moves from $$n=2 to$$ $$n=5$$, what happens to its potential energy?

Accepted Answer

It increases

Question 12

Which statement is true about the emission process in the Bohr Model?

Accepted Answer

Electrons move to a lower energy shell

Question 13

A student observes a bright line in the emission spectrum of hydrogen. Which electron transition is most likely responsible?

Accepted Answer

$$n=5 to$$ $$n=2$$

Question 14

Which of the following best explains why electrons in higher shells have greater potential energy?

Accepted Answer

They are farther from the nucleus and less attracted to it

Question 15

If an electron transitions from $$n=6 to$$ $$n=2$$, what is the result?

Accepted Answer

Emission of energy

Question 16

Which transition would produce the lowest frequency photon?

Accepted Answer

$$n=4 to$$ $$n=3$$

Question 17

In the Bohr Model, what is the main factor that determines the energy difference between two shells?

Accepted Answer

The difference in their principal quantum numbers $$n$$

Question 18

Which of the following transitions would result in the absorption of a photon with the lowest energy?

Accepted Answer

$$n=1 to$$ $$n=2$$

Question 19

A patient receives a treatment that excites electrons from $$n=1 to$$ $$n=4. $$What type of electromagnetic radiation is most likely used?

Accepted Answer

Ultraviolet

Question 20

Which of the following is NOT a possible electron transition in the Bohr Model?

Accepted Answer

$$n=0 to$$ $$n=1$$

Bohr Model, Electron Shells, and Absorption/Emission in Atomic Structure

Study Guide - Practice Questions