What were three new elements that were banned from being included on the periodic table? why?

They are Darmstadtium, or Ds, which has 110 protons in its nucleus and was named after the town in which it was discovered;

Roentgenium, or Rg, with 111 protons, named after the discoverer of X-rays Wilhelm Conrad Roentgen;

And Copernicium, or Cn, which has 112 protons and is named after the Polish astronomer Copernicus, who disrupted the view that the Earth was the center of the universe.

Explanation:

conduction, convection, radiation

explanation:

wheres the pic