How does an atom become an ion?
How does an atom become an isotope?
What is the mass number?
How do you name an isotope (ex name boron-5)?
What is the atomic number?
What particle (electron, neutron or proton) cannot be changed because it would change the element?
How do you find the charge of an ion?
If you have 6 neutrons, electrons and 5 protons
what is the mass number? what is the atomic number? what is the charge? what element is it?
