Constructive vs Destructive

[inlovewithchemistry]

Can someone explain the difference between constructive and destructive waves and why they are important in determining the properties of an electron? How are they unique?
Thank you!

[Sydney Takeda 2I]

Constructive interference is when two waves are in phase, basically meaning the waves are combined and thus result in a greater amplitude; destructive interference is the opposite scenario, where two waves are out of phase and thus cancel (entirely or partially) each other out, resulting in a smaller amplitude. This is important because, since electrons also produce these diffraction patterns, it proves that electrons also have wave-like properties

[Mayaal_Khan_4H]

Constructive: Two waves combine to form a larger wave that has an amplitude which is larger than the amplitudes of the initial waves.
Destructive: Two waves combine but cancel out to form a smaller wave that has an amplitude which is smaller than the amplitudes of the initial waves.

[AlyssaBei_1F]

Constructive is when waves are in phase, meaning the waves are on the same pattern which creates a greater amplitude. Destructive is when waves are out of phase, meaning the waves are opposite of each other, which creates a smaller amplitude. This shows that waves show diffraction patterns and have wavelike properties.