Question

Long answer questions (3 x 5)

21. Give any 5 postulates of Dalton's atomic theory.​

Answer 1

1.All matter is made up of atoms, which are tiny, indivisible particles.

2.All the atoms of an element have the same size, mass, and properties but the atoms of different elements have different sizes and masses.

3.Atoms cannot be created, destroyed, or divided into smaller particles.

4.Compounds are formed when the atoms of different elements combine with each other in fixed, whole-number ratios.

5.Atoms can be combined, separated, or rearranged via chemical reactions.

Answer 2

Answer:

All matter consists of indivisible particles called atoms.

Atoms of the same element are similar in shape and mass, but differ from the atoms of other elements.

Atoms cannot be created or destroyed.

Atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form compound atoms.

Atoms of same element can combine in more than one ratio to form two or more compounds.

The atom is the smallest unit of matter that can take part in a chemical reaction.

Explanation:

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