01. Suppose you have atoms A and B. Which of the following is not true? A. All matter is composed of small particles called atoms. B. Atoms of one element can be converted to atoms of another element in chemical reactions. C. Atoms have different masses. D. All atoms of a given element are identical. 02. What are isotopes in the given hypothetical elements? Atomic number 53 Mass number Element X Element Y Element Z 54 127 53 131 127 A. X &Z B. X & Y C. Y&Z D. None of the above

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