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An atom has a mass number of 24 and 13 neutrons. What is the atomic number of this atom? Express

Whitney Matthews

in Chemistry

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Victoria Fowler on February 3, 2019

A=mass number (protons + neutrons)Z=atomic number (protons)N=neutron number.A=Z+NData:=24N=13Therefore:24=Z+13Z=24-13=11Answer: The atomic number of this atom is 11. (The element sodium)


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