Question

Short essay about neutrons protons and electrons

Answer 1

NEUTRONS:-It is a subatomic particle.The free neutron have a mass of about 1.675×10-27(-27 is the power).A free neutron is unstable,decaying to a proton,and antineutrino with a mean lifetime of just under 15 minutes.
Symbol: n,n0,N0

PROTON:-It is a subatomic particle found in the nucleus of every atom.The particle have a positive electrical charge,equal and opposite to that of electron.

ELECTRONS:-It is a negatively charged subatomic particle. Electrons in atoms exist in spherical shapes of various radii,reprenting energy levels.

Answer 2

Answer:

Atom is a Greek word which means “indivisible.” The Greeks believed that matter can be broken down into very small invisible particles called atoms. Greek philosophers such as Democritus and John Dalton put forward the concept of the atom.