Question

Dalton atomic theory
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Answer 1

Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks.

Answer 2

Answer:

The main postulates of Dalton's atomic theory are:

• Matter consists of very small and indivisible particles called atoms.
• Atoms can neither be created nor be destroyed.
• The atoms of an element are alike in all respects, but they differ from the atoms of other elements.
• Atoms of an element combine in small numbers to form molecules.
• Atoms of one element combine with atoms of another element in a simple ratio to form molecules of compounds.
• Atoms are the smallest unit of matter that can take part in a chemical reaction.

Explanation:

• The Greek philosopher Democritus (460 BC - 370 BC) called The paramanu an "atom", Which comes from the Greek word 'atomos' meaning indivisible.
• But the first scientific theory about the structure of Matter was given by John Dalton in 1808.
• He considered atoms as indivisible particles that are the fundamental building blocks of matter.
• The existence of different types of matter is considered to be due to different types of atoms constituting them.