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A chromium (Cr) atom has 24 protons, 28 neutrons, and 24 electrons. What is the mass number of the chromium atom?
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A chromium (Cr) atom has 24 protons, 28 neutrons, and 24 electrons.

What is the mass number of the chromium atom?

User Gnueghoidune
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The mass would be 52 amu because you add the protons and neutrons to get the mass of an atom
User Zapata
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