Question

what do you understand by electron?

Answer 1

Electron — it is a negatively charged subatomic particles

• It can be either free or bound to the nucleus of an atom
• It is a very small particle that has a negative charge of electricity and travels around the nucleus of an atom
• its mass is about 9.1 X 10^-31 kg or about 1/1836 than of a proton
• its charge is equal to - 1.6 X 10^-19 C
• the number of protons and electrons is equal in a neutral atom
• electrons in atoms exist in spherical shells of various radii, representing energy levels
• The word electron is a combination of the words electric and ion { pronounce as electron }