Fluorine-19 (¹⁹F)
* Protons: Fluorine always has 9 protons. This defines it as fluorine.
* Neutrons: The "19" in fluorine-19 refers to its mass number. This is the sum of protons and neutrons. So, it has 19 - 9 = 10 neutrons.
* Electrons: In a neutral atom, the number of electrons is equal to the number of protons. Therefore, fluorine-19 has 9 electrons.
Oxygen-16 (¹⁶O)
* Protons: Oxygen always has 8 protons. This defines it as oxygen.
* Neutrons: The "16" in oxygen-16 refers to its mass number. So, it has 16 - 8 = 8 neutrons.
* Electrons: Oxygen-16, in its neutral state, has 8 electrons.
Summary:
* Fluorine-19: 9 protons, 10 neutrons, 9 electrons
* Oxygen-16: 8 protons, 8 neutrons, 8 electrons
