Which of the following assumptions of Dalton's Atomic Theory are no longer valid?
A)Each element is composed of atoms.
B)All atoms of a given element have the same mass and other properties that distinguish them from the atoms of other elements.
C)Atoms combine in simple,whole-number ratios to form compounds.
D)Atoms of one element cannot change into atoms of another element.

Question

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The Answer of Which of the following assumptions of Dalton's Atomic Theory are no longer valid?
A)Each element is composed of atoms.
B)All atoms of a given element have the same mass and other properties that distinguish them from the atoms of other elements.
C)Atoms combine in simple,whole-number ratios to form compounds.
D)Atoms of one element cannot change into atoms of another element.

Which of the Following Assumptions of Dalton's Atomic Theory Are