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Which of the following statement/s is/are true?
I- The masses of the proton and electron are essentially the same which only differs in the fourth significant figures.
II- The atomic number of an element is the same as the number of neutrons in the element.
III- The mass number of a neutral element is equal to the sum of the numbers of electrons and neutrons of that element.
Which of the following statement/s is/are true?
I- The masses of the proton and electron are essentially the same which only differs in the fourth significant figures.
II- The atomic number of an element is the same as the number of neutrons in the element.
III- The mass number of a neutral element is equal to the sum of the numbers of electrons and neutrons of that element.
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