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Your Questions About How To Discover New Elements

Chris asks…

I want to know how to determine the atomic structure of an unknown element using the mass spectrometre?

This question is from a past paper where a chemist has discovered a knew element.The question is How would you identify its different isotopes and determine its relative atomic structure?So I said I would use the instrument the Mass Spectrometre .I am able to determine what to do to identify the different iotopes with the instrument but I can not dtermine the aomic structure.Then the second part of the question is’How would you attempt to determine its atomic number of the element that chemist discovered.

New Niche Finder answers:

I think you will not be able to answer using mass spec….you know why? Read here http://www.chem.ucalgary.ca/courses/351/Carey/Ch13/ch13-ms.html.
It can’t give you the structure of an atom.
For the determination of the atomic number…you can get it by using the method you use to get the isotopes…..just analyze…

Michael asks…

Important question about the periodic table of elements?

suppose that a newly discovered element called centium has three isoptopes that occur in nature. these are centium-200, centium-203, and centium-209. assume that these isotopes occur in equal amounts in nature. what will be the average atomic mass of this element?

New Niche Finder answers:

(200+203+209)/3 = 204 amu (atomic mass units)

Susan asks…

Does our periodic table contain all of the elements in the known universe?

Have we discovered all of the elements the Universe is made up of?

New Niche Finder answers:

No, the periodic table contains all elements which have been discovered in their natural phase or chemically formed. However, the search for more elements is eternal. There is no proof we have discovered all the elements.

Donald asks…

Why was Marie Curie so significant? How have her accomplishments affected the world?

I’m doing a report on Marie Curie. I know she was a pioneer in physics and chemistry. She also made advancements in radiation by discovering the elements polonium and radium. But what is so significant about her discoveries? More importantly, how have her discoveries (polonium and radium) affected the modern world today?

Thanks

New Niche Finder answers:

She was the first to isolate Radium and Polonium making research and practical use of radio-activity possible.

Mary asks…

How to find atomic mass with only two isotopic masses?

While traveling to a distant universe, you discover the hypothetical element “X.” You obtain a representative sample of the element and discover that it is made up of two isotopes, X-23 and X-25. In the report, you also inform the science team that the gold atoms are X-23, which have an isotopic mass of 23.02 amu, and the green atoms are X-25, which have an isotopic mass of 25.147 amu. What is the atomic mass of element X?

New Niche Finder answers:

The atomic mass would be:

23.02amu * (fraction of element X that is X-23) +
25.147amu * (fraction of element X that is X-25)

You have to have the relative abundances of X-23 and X-25 to calculate the atomic mass of the element.

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