Answer:
heya!!!
Explanation:
In atomic physics, the Rutherford–Bohr model or Bohr model, presented by Niels Bohr and Ernest Rutherford in 1913, is a system consisting of a small, dense nucleus surrounded by orbiting electrons—similar to the structure of the Solar System, but with attraction provided by electrostatic forces in place of gravity.
Nitrogen is 5 valence electrons
oxygen is 6 valence electrons
fluorine is 7 electrons
Chemical Equation Balancer
I got B. Because the answer is K2SO4, I got it right on my test so I know its right