define dalton atomic theory and also give their main postulate
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The postulates of Dalton's atomic theory were used to explain earlier observations of the behavior of matter. His postulates were...
(a) All matter is composed of small, indivisible particles called atoms.
(b) All atoms of a given element are identical in mass and properties.
(c) Compounds are formed by a combination of two or more atoms in definite arrangements in the ratio of small whole numbers.
(d) Atoms are not created, destroyed or converted into other kinds of atoms during chemical reactions. They are simply rearranged into new compounds.
(a) All matter is composed of small, indivisible particles called atoms.
(b) All atoms of a given element are identical in mass and properties.
(c) Compounds are formed by a combination of two or more atoms in definite arrangements in the ratio of small whole numbers.
(d) Atoms are not created, destroyed or converted into other kinds of atoms during chemical reactions. They are simply rearranged into new compounds.
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Dalton's Atomic Theory postulates explain the behavior of matter. This are his main postulates:
(1) Using the combination of two or more atom, compound atoms are formed in the ratio of small whole numbers.
(2) All matters contains indivisible (means: unable to be divided or separated) particle called atom.
(3) Atoms of the same element are maybe similar in shape and mass, but are different from the atoms of other elements.
(4) During the chemical reactions atoms are not created nor destroyed but they are just simply rearranged into new compounds.
(5) In the chemical reaction, atom is the smallest unit of matter that can take part in it.
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