Question

describe two examples of properties of electrons that are particle-like

Answer 1

Newton proposed the light has particle nature and propogate in a space and it is characteristic prop. Of electron also and shows reflection in one direction.

Photoelectric effect

when a light beam is bombarding on metal surfaces, some particles like electron will be ejected, it is shown by Einstein photo electric effect.

Electron has kinetic energy and K.E. Is directly prop. To incident of light

And

Num. of ejected electrons is direct. Prop. To intensity of incident light

Electron has particle property has negative charge(shown by Thomson) and mass and it is well explained by Milliken oil-drop model and calculated e/m (Electronic charge/mass).

It is also well explained that electromagnetic radiation propogate in a definite packet of energy and shown by

E = nhnew

n= no. of quanta

BY Niels Bohr experiment, electrons are particle and present around the nucleus in an atom and have a deiffinite path which has fixed amount of energy called quantization of energy.

It is shown by energy level K, L, M and N where principle quan. Num. n= 1,2,3…….

And energy will be E= hnew

E= 2hnew

E= 3hnew