With the Discovery of Isotopes,which Postulate of Dalton's Original Atomic

question 68

Multiple Choice

With the discovery of isotopes,which postulate of Dalton's original atomic theory must be modified?

• A)Matter is made up of atoms.
• B)Atoms combine with other atoms in whole number ratios to form compounds.
• C)All atoms of the same element are the same.
• D)In chemical reactions, the arrangement of atoms is changed.

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