An excited electron jumps back to its ground state in two steps. What will its emission spectrum look like?

A) one long line

B) one thick line

C) two distinct lines

D) a continuous patch

C. two distinct lines.

Explanation:

Emission spectral is the characteristics of energies involved. When an electron absorbs energy, it gets excited and jumps to a higher energy level that has a quantified energy value equal to that absorbed. On de-excitation, it drops back to a lower energy level or the ground state and emmit energy(ies) in the process in form of spectrum.

In the question given, the electron jumps back to its ground state in two steps. It initially drops from the excited state to a lower energy level and latter drops to its ground state. Thus, two distinct lines would be emitted.

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

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