Question 286: Atoms & Nuclei

Question

The diagram shows the energy levels for an electron in a certain atom. Which transition shown represents the emission of a photon with the most energy?

Accepted Answer

KEY CONCEPT :
$$E = Rhc\left[ {{1 \over {{n_1}^2}} - {1 \over {{n_2}^2}}} ight]$$
$$E$$ will be maximum for the transition for which
$$\left[ {{1 \over {{n_1}^2}} - {1 \over {{n_2}^2}}} ight]$$ is maximum. Here $${n_2}$$ is the higher energy level
Clearly, $$\left[ {{1 \over {{n_1}^2}} - {1 \over {{n_2}^2}}} ight]$$ is maximum for the third
transition, i.e. $$2 	o 1.$$ $$I$$ transition represents the absorption of energy.

Answer

$$iv$$

Answer

$$iii$$

Answer

$$ii$$

Answer

$$i$$

Atoms & Nuclei

The diagram shows the energy levels for an electron in a certain atom. Which transition shown represents the emission of a photon with the most energy?

Choose the correct answer: