Physical Science (Chapter 4)
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a beryllium ion
A lithium atom contains 3 protons, 4 neutrons and 3 electrons. What would be formed if one proton is added to this atom?
atomic number = 26, atomic mass = 56, net charge = 3-
An ion of iron has an 26 protons, 30 neutrons, and 23 electrons. What are its atomic number, atomic mass, and net charge?
10 electrons
The atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is represented by the symbol shown below?
4 neutrons
The atomic number of lithium is 3. How many neutrons does an atom of lithium have if it is represented by the symbol shown below?