(1) Matter wave represents the probability of tinding a particle in space.
(2) Matter waves are not electromagnetic in nature.
(3) Practical observation of matter waves is possible only when the de-Broglie wavelength is of the order of the size of the particles.
(4) Electron microscope works on the phenomena of de-Broglie waves.
(5) de-Broglie or matter wave is independent of the charge on the particle. That means, matter wave is associated with every moving particle (whether charged or uncharged).
(6) Matter waves can propagate in vaccum, and hence they are not mechanical waves.
(7) The phase velocity velocity of wave cannot be greater than speed of the light.
(8) The number of de-Broglie waves associated with Nth orbital electron is N
