Question

When an energy level of an electron goes from n=1 --> 2, what is this called?

A) Absorption
B) Emission
C) Ionization
D) Transition

Answer 1

When an energy level of an electron goes from n=1 to 2, this is called a transition. It can be accompanied by the absorption or emission of energy in the form of photons.

Step-by-step explanation:

When an energy level of an electron goes from n=1 to 2, this is called a transition (option D).

In this transition, the electron moves from a lower energy level (n=1) to a higher energy level (n=2).

This transition can be accompanied by the absorption or emission of energy in the form of photons.