Element and compound idea of Dalton?

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TheTruth1
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Element and compound idea of Dalton?

Post by TheTruth1 »

Dalton's Atomic Theory
1) All matter is made of atoms. Atoms are indivisible and indestructible.

2) All atoms of a given element are identical in mass and properties

3) Compounds are formed by a combination of two or more different kinds of atoms.

4) A chemical reaction is a rearrangement of atoms.
In his second postulates he says elements and in third the compounds. As a beginner of science my question is how we will recognize a matter whether it is element or compund?
deleted-424657
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Re: Element and compound idea of Dalton?

Post by deleted-424657 »

Hello TheTruth1,

Sorry for the late answer! You can recognize whether matter is a compound or an element by this fact: an element is made up of the same type of atom (ex: the element hydrogen is only made of hydrogen atoms), whereas a compound is made up of multiple elements (ex: water is a compound made up of the elements hydrogen and oxygen).

Hope this helps!
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