23. Which of the following statements is incorrect?
(A) Dalton's statement "All atoms of a given element are identical" is no longer
accepted because of the existence of isotopes and ions.
(B). Dalton’s theory states that elements are made of tiny particles called atoms.
(C) According to Rutherford, the number of protons is the same as the number
of electrons.
(D) According to Rutherford, the nucleus must have a positive charge to
balance the negative charge of the electrons.
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統計: A(4), B(1), C(2), D(1), E(0) #3577912
統計: A(4), B(1), C(2), D(1), E(0) #3577912