Question

Electrons in atoms exist in particular energy levels. A _______ must be emitted or absorbed to move between energy levels.Question options:A) particleB) photonC) electronD) quantum

Answer 1

Answer

B) photon

Explanation

The electrons in an atom tend to be arranged in such a way that the energy of the atom is as low as possible. The ground state of an atom is the lowest energy state of the atom. When those atoms are given energy, the electrons absorb the energy and move to a higher energy level. These energy levels of the electrons in atoms are quantized. An excited state of an atom is a state where its potential energy is higher than the ground state. An atom in the excited state is not stable. When it returns back to the ground state, it releases the energy that it had previously gained in the form of electromagnetic radiation. These energies are in form of photon.

Hence, electrons in atoms exist in particular energy levels. A photon must be emitted or absorbed to move between energy levels.

The correct answer is option B) photon