Question

Can anyone tell what was Dalton's atomic theory!
Please someone answer​

Answer 1

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• Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.
• Dalton based his theory on the law of conservation of mass and the law of constant composition.
• The first part of his theory states that all matter is made of atoms, which are indivisible.
• The second part of the theory says all atoms of a given element are identical in mass and properties.
• The third part says compounds are combinations of two or more different types of atoms.
• The fourth part of the theory states that a chemical reaction is a rearrangement of atoms.
• Parts of the theory had to be modified based on the discovery of subatomic particles and isotopes

Answer 2

Answer:

same element can have different masses because the number of neutrons can vary for different isotopes of the same element. For more on isotopes, you can watch this video on atomic number, mass number, and isotopes.

Despite these caveats, Dalton's atomic theory is still mostly true, and it forms the framework of modern chemistry. Scientists have even developed the technology to see the world on an atomic level!

Attributions and references

Summary

Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.

Dalton based his theory on the law of conservation of mass and the law of constant composition.

The first part of his theory states that all matter is made of atoms, which are indivisible.

The second part of the theory says all atoms of a given element are identical in mass and properties.

The third part says compounds are combinations of two or more different types of atoms.

The fourth part of the theory states that a chemical reaction is a rearrangement of atoms.

Parts of the theory had to be modified based on the existence of subatomic particles and isotopes.

Explanation:

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