What is the atomic structure for oxygen and phosphate?

Oxygen has 8 protons, 8 neutrons, and 8 electrons. Phosphate has 15 protons, 16 neutrons, and 15 electrons. Oxygen has 2 electron shells, with 2 electrons in the first shell and 6 electrons in the second shell. Phosphate has 3 electron shells, with 2 electrons in the first shell, 8 electrons in the second shell, and 5 electrons in the third shell.