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  • Dalton's Atomic Theory.

  • John Dalton was an English scientist who is well known for his work in the development of atomic theory.

  • Hello, anybody there?

  • All matter, whether an element, a compound or a mixture is made up of very tiny particles called atoms.

  • All atoms of a given element are identical in size, mass and chemical properties.

  • Same size.

  • Same mass.

  • We both have same chemical properties.

  • Atoms of different elements differ in size, mass and chemical properties.

  • We have different sizes.

  • We have different masses.

  • We both have different chemical properties.

  • Atoms are indivisible particles which can neither be created nor destroyed in a chemical reaction.

  • I am indivisible.

  • You can neither be created nor destroyed.

  • Atoms combine together in fixed whole number ratios to form compounds.

  • We combine in fixed whole number ratios.

  • I have been formed.

  • In a chemical reaction, atoms only get rearranged.

  • An atom of an element does not change into the atom of another element.

  • Example of chemical reaction.

  • The End.

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B1 中級 美國腔

Daltons原子理論|#aumsum (Daltons Atomic Theory | #aumsum)

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    AumSum 發佈於 2021 年 01 月 14 日
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