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What is the mass number of an ion with 107 electrons, 159 neutrons, and a +1 charge? express your answer as an integer?
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What is the mass number of an ion with 107 electrons, 159 neutrons, and a +1 charge? express your answer as an integer?

User Westlee
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The mass number of an ion is calculated by adding the neutrons and electrons together. In this case 159+107=266. However, since this ion has a +1 charge, you must add 1 to the electrons. This would give a total mass of 267.
User Alkas
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