constituents

[ankur bhattacharjee]

What are the various constituents of an atoms?

[India Hindi Blog Information]

Please check - The various constituents of an atom are described below 

Protons - These are the basic nuclear particles. They possess a fixed unit positive electrical charge equal to 1.69 x 10-19 coulomb and unit mass of 1.67 x 10 x 27 kg. They exist in the atom together with neutron and balances the negative charge of electrons. 

Neutrons - They are also basic nuclear particles having no electrical charge with a mass of 1.67 x 10-27 kg. The protons and neutrons combine forms the nucleus. The sum of number of protons and neutrons of the atom of an element is known as atomic weight of the material.

Electrons - An electron is the unit quantity of electrical energy. It can be considered as a minute particle or as an energy wave of negative charge. Its mass is 1/1836th of the mass of proton, i.e 9.11 x 10-31 kg, and its negative charge is equal to the charge on protons, i.e 1.69 x 10-19 coulomb. The number of electrons in an atom is known as its atomic number.

The electrons obey very rigid energy laws and can spin only in certain ordered energy levels or orbital shells concentric with the nucleus.