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Your Questions About How To Discover New Elements

James asks…

when was zinc, the element discovered?

do you know how it got it’s name? properties of zinc? what are it’s uses?

New Niche Finder answers:

DISCOVERED IN: is being used since 1300-1000 BC

GOT ITS NAME FROM: Paracelsus (1616) was credited with the name “zinc”.

PROPERTIES:
Physical:

-bluish-white metal
-tarnishes in moist air-
burns in air with a bright greenish flame
-malleable

Chemical:

-reacts with acids, alkalis and other non-metals
-reacts with dilute acids to release hydrogen
-oxidation state of zinc is +2.

USES:
-to galvanize steel to prevent corrosion
-in alloys such as brass, German silver
-as part of the containers of batteries

Helen asks…

Marie and Pierre _______ discovered the element radium?

what is the blank?

New Niche Finder answers:

Curie
Radium (Latin radius, ray) was discovered by Marie Skłodowska-Curie and her husband Pierre in 1898 in pitchblende from North Bohemia, in the Czech Republic (area around Jáchymov). While studying pitchblende the Curies removed uranium from it and found that the remaining material was still radioactive. They then separated out a radioactive mixture consisting mostly of barium which gave a brilliant green flame color and crimson carmine spectral lines which had never been documented before. The Curies announced their discovery to the French Academy of Sciences on 26 December 1898.
She won the Nobel prize for this work (first woman to win)
And discovered Polonium Named after her country Poland
Wiki

Paul asks…

Elements…..???

Ok i need to know by who and when each of the following elements were discovered.

•Oxygen
•Bromine
•Chlorine

If you can help me thank you sooooooo much!!!

New Niche Finder answers:

Oxygen was discovered by swedish pharmacist Karl Scheele in 1771.
Bromine was discovered by Balard in 1826
chlorine was discovered in 1774 by Karl Scheele

Jenny asks…

Have we discovered all the elements?

I was just wondering if we have discovered all the elements that exist. Are all the elements in the periodic table the only ones which exist or are there more??
I’m not sure if I’m being stupid here and the answer is simply “No of course we haven’t!!”
But I just want to check before I make my assumptions. :)

New Niche Finder answers:

That is a very good question.

As far as the “normal” elements, yes, we discovered them all (and we even figured out how to make one that was “missing”, that we could not find in the earth, specifically, Tc). Everything heavier than Pb is naturally radioactive and scientists found most of these once they starting playing around with Uranimum. The elements heavier than U were found once scientists started learning about nuclear fission and bombarding heavy elements with light nuclei to make even heavier elements. Most of these elements are named for people or places where this scientific work was done.

There are theories that suggest that there may be “islands of stability” in very very heavy elements that might be more stable and which might not break down so quickly. So… These scientists continue to spend some research money on this search and, every now and then, they produce a new element.

Steven asks…

Which is the most recently discovered naturally occuring element?

and does the fact that there are no gaps lower down in the perdiodic table make it impossible for a new element to be discovered existing naturally?

New Niche Finder answers:

Francium is the most recently discovered naturally occuring element. It is also by far the scarcest. If you go to webelements.com and look at francium, it will show you a picture of a rock which is supposed to contained an estimated 1 atom of francium at any given time (from nuclear decay chains). The most recently discovered naturally occuring element which is stable is rhenium, which is very rare. Elements heavier than plutonium are too unstable to be discovered in nature, so there are no more to discover in nature.

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