MATTER
matter may be defined as anything that occupies space and possesses mass.All things which we see or feel around us like air,water,plants,animals,stones,sand,ice,steel,etc. are termed as matter.
👉PHYSICAL NATURE OF MATTER
— Matter is made up of particles.
— The particles of matter have space between them.
— The particles of matter are continuously moving.
— The particles of matter are very small.
— The particles of matter attract each other.
CLASSIFICATION OF MATTER
👉 Compound is further devided in organic and inorganic compounds
ðŸ’STATES OF MATTER :
On the basis of physical state, matter can be classified into three groups- solids, liquids and gases. In general, this classification arises due to variation in characteristics of the particles of matter.
ᷥ THE SOLID STATE
✏ solids have fixed shape and fixed volume.
✏ solids possess rigidity hence can not becompressed.
✏ solids do not flow or diffuse into each other.
✏ solids have high density.
ᷥ THE LIQUID STATE
✏ Liquids have fixed volume but no fixed shape.
✏ Liquids can not be compressed much.
✏ Liquids flow from a heigher to lower level.
✏ Liquids have lesser density than solids.
ᷥ THE GASEOUS STATE
✏ Gases are highly compressible.
✏ Gases have very low density.
✏ Gases flow eaisly and diffuse into one another.
✏ Gases do not have fixed shape and volume and can thus fill the entire space of the container.
📢 TWO MORE STATES OF MATTER
🖋 PLASMA:
This state consists of super energatic and super excited particles. These particles are in the form of ionized gases and free electrons.
A fluorescent light bulb or a neon sign bulb is an example of plasma state. As electriity flows through helium or neon filled in the bulb or the sign bulb, the atoms of these gases break into charged electrons and ions,consequently plasma is formed which glows with a specific colour.
The sun and the star glow due to presence of natural plasma created by the high temprature.
🖋BOSE-EINSTEIN CONDENSATE
This state is called fifth state of matter and is the main work of the scientists satyendra nath bose and Albert Einstein. But this was actually shown to exist by three american scientists, Eric A,cornell, Wolfgang Ketterle and Carl E. Wieman in 2001 by cooling certain gases of extremely low density to a very low tempreture called super low temprature.
