What were three new elements that were banned from being included on the Periodic Table? WHY?

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01-10-2019
Physics

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What were three new elements that were banned from being included on the Periodic Table? WHY?

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marabu78 marabu78 · Answer 1 · 2019-10-01T23:38:58+02:00

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 batolisis · Answer 2 · 2021-08-22T21:48:50+02:00

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

Darmstadtium ( Ds )
Roentgenium ( Rs )
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