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Henri Becquerel discovered the natural radioactivity on uranium.
Polonium was discovered by Marie Curie and Pierre Curie in 1898.
Radium was discovered by Marie Curie, Pierre Curie and G. Bemont also in 1898. Studying residues of uranium ores Marie Curie and Pierre Curie found that these residues are more radioactive than uranium; they attributed this radioactivity to unknown elements. They isolated these elements and named these elements polonium and radium.
What else can I help you with?
Who is connected with Marie Curie's main discovery?
Mr. Curie
Mr and mrs or Mr and Mrs?
Mr and Mrs
Mr or Mrs correct or Mrs or Mr is correct?
Mr and Mrs is correct or Mrs and Mr is correct
Should it be Mrs and Mr Or Mr and Mrs?
Mr. and Mrs. (ex. "Hello, Mr. and Mrs. Evans" instead of "Hello, Mrs. and Mr. Evans")
Mr. and mrs. Smith or mrs. and mr. Smith?
Mr. & Mrs. Smith
Does Mr and Mrs is correct or Mrs and Mr is correct?
In the US it is normally Mr. and Mrs.
Should it be Mr and Mrs or Doctor and Mrs?
Dr. and Mrs. or Mr. and Dr.
Is it Dear Mr and Mrs Keys or Mr and Mrs David Keys as the salutation?
I would address it to Mr and Mrs David Keys. For the salutation I would use Dear Mr and Mrs Keys.
Should it be Mr and Mrs or Mr and Mrs?
Mr. used to be acceptable to address a household by just using the last name, e.g. "Mr. Jones". In modern times, it is typically to use "Mr. and Mrs. Jones" or "Mr. and Mrs. Timothy Jones".
Mr and mrs or Mrand Mrs?
Mr and Mrs its just more formal today in society.
How do you say Mr and Mrs in Norwegian?
"Mr" = "Herr". "Mrs" = "Fru".
How do you address a formal invitation to Mr and Mrs in French?
mr ans miss or.... for mrs is madame. mr ans miss or.... for mrs is madame.
