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Answer: 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:

batolisis

The three new elements that were banned from periodic Table are :

  1. Darmstadtium ( Ds )
  2. Roentgenium ( Rs )
  3. Copernicium ( Cn )

These elements where banned from being included due to the abnormality in the number of protons they have in their nuclei. and they also possess a  high level of radioactivity.

  • Darmstadtium has 110 protons and it is a synthetic element with high level of radioactivity
  • Roentgenium has 111 protons in its nucleus and was discovered by Wilhelm Conrad Roentgen
  • Copernicium has 112 protons in its nucleus as well. and was named after Copernicus, it is also grouped  as a transition metal

hence the new elements that were banned from the periodic table are :

Darmstadtium ( Ds ), Roentgenium ( Rs ) , Copernicium ( Cn )

Learn more about periodic table : https://brainly.com/question/21938331

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