Dalton's Atomic Theory

→ According to Dalton’s atomic theory, all matter, whether an element, a compound or a mixture is

composed of small particles called atoms.

→ Six Postulates of Dalton's atomic theory:

(i) All matter is made of very tiny particles called atoms.

(ii) Atoms are indivisible particles, which cannot be created or destroyed in a chemical reaction.

(iii) Atoms of a given element are identical in mass and chemical properties. (Law of conservation of mass)

(iv) Atoms of different elements have different masses and chemical properties.

(v) Atoms combine in the ratio of small whole numbers to form compounds. (Law of constant proportion)

(vi) The relative number and kinds of atoms are constant in a given compound.

Continue reading to

Join any of the batches using this book

Batch List

Class IX SCIENCE BATCH
Science Made Easy

Course : CBSE Class 9

Start Date : 08.08.2022

End Date : 31.12.2022

Types of Batch : Classroom

Subject M T W T F S S
Science(6 hours) 2:45 PM 2:45 PM 2:45 PM 2:45 PM 2:45 PM 2:45 PM 3:45 PM
SCIENCE CLASS 9TH
Science Made Easy

Course : CBSE Class 9

Start Date : 09.08.2022

End Date : 31.12.2022

Types of Batch : Live Online Class

Subject M T W T F S S
Science(7 hours) 4:15 PM 2:45 PM 4:15 PM 4:15 PM 4:15 PM 4:15 PM 4:15 PM