atom kya hai # learn easy

ATOM



IT IS SMALLEST UNIT OF MOLECULE

solid ,liquid , gas ,plasma, living , non-living contain basic smallest unit is know as atom.

1. Nucleus = it is canter of atom which contain A. neutron and B. proton .
2. Orbit = orbit is surrounding area of nucleus which contain C. electrons .

CHARGE ( 1.6* 10^-19 )coulomb
A. neutron =  no charge
B. proton =(+)positive charge(+ 1.6* 10^-19)
C.electron =(-)negative charge (- 1.6*10^ -19)


MASS
mass is amount of mater

Mass of neutron and proton = 1.62*10^-24 gram

mass of electron =  9.11 *10^-28

WEIGHT
the weight of a body is the product of its mass and the acceleration due to gravity.
( amount of force acting on body.)

W= M * G

W= WEIGHT
M= MASS
G= GRAVITY

ATOMIC NUMBER 

Atomic number = number of protons

Mass number = proton + neutron 

number of neutron in atom = number of neutron - number of electron 

VOLUME 
Accounting for the sizes of protons, neutrons, and electrons, most of the volume of an atom—greater than 99 percent—is, in fact, empty space. Despite all this empty space, solid objects do not just pass through one another. The electrons that surround all atoms are negatively charged and cause atoms to repel one another, preventing atoms from occupying the same space. These intermolecular forces prevent you from falling through an object like your chair.

MONOATATOMIC

When any molecule have only one atom then it is called monatomic atom.

POLYATOMIC

When any molecule have two or more then two atom then it is known as polyatomic atom.