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Write complete symbols, including mass number and atomic number, for atoms with the following characteristics. 1)...

Write complete symbols, including mass number and atomic number, for atoms with the following characteristics. 1) Contains 28 protons and 30 neutrons. 2) Contains 22 protons and 21 neutrons. 3) Contains 15 electrons and 19 neutrons. 4) Oxygen atom with 10 neutrons. 5) Chromium atom with a mass number of 54

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