---Topic Dalton atomic Theory--- Class 9th students' pptx. atomic, chapter 3, chemistry, dalton, rajat5mittal, theory.

1. INTRODUCTION
C.A.R.E. PUBLIC SCHOOL
DALTON’S ATOMIC THEORY
Submitted by: Anurag Dhiwar
Submitted to: Rajat Mittal Sir

2. DALTON’S ATOMIC
THEORY

3. WHO WAS DALTON?
JOHN DALTON FRS (6 September 1766 – 27 July
1844) was an English chemist, meteorologist and
physicist. He is best known for his pioneering work
in the Development of Modern Atomic Theory, and
his research into colour blindness.

4. WHAT IS DALTON’S ATOMIC
THEORY?
Dalton presented his atomic theory in 1808 which was a
turning point in the study of matter.
Dalton’s atomic theory provided an explanation for the law of
conservation of mass and the law of definite proportions.
According to Dalton’s Atomic Theory, all matter, whether an
element, a compound or a mixture is composed of small
particles called atoms.

5. POSTULATES OF DALTON'S ATOMIC
THEORY
I. Matter is made up of extremely small particles called atoms.
II. Atoms are indivisible particles which can neither be created or
destroyed in a chemical reaction.
III. Atoms of given element are identical in all respects of mass, shape,
size and chemical properties.
IV. Atoms of different elements have different masses and chemical
properties.
V. Atoms of same or different elements combine together to form
compounds.
VI. The relative number and kinds of atoms are constant in a given
compound.