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There are probably nearly as many answers to this question as there are elements. Many elements were found more or less by accident. Others were discovered as a result of research into a particular compound or mineral. Others were predicted to exist – on the basis of Mendeleev’s Periodic Table, for example – so the discoverer knew what he or she was looking for. However, from time to time a new chemical technique is developed or discovered that leads to the discovery of several new elements in a short time. You can use the interactive Periodic Table to investigate this idea.
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∙ 11y ago
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∙ 10y agoHe arranged known elements in a table according to their chemical properties, noticed that there is a kind of repetition as Atomic Mass increases, and then postulated that empty places in his table represented missing, undiscovered elements.
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∙ 13y agoThey are synthesised in nuclear reactors and cyclotrons etc.
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∙ 13y agopeople research the world
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∙ 9y agohow do scientists descover things
Anonymous
were tf are the answers at that's what im obviously lookin for o why would post somethin that just says iii
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iii
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Are there more new elements left to be discovered?
yes there is
What two elements were discovered in 1990's?
No elements were discovered in 1990. Two elements were discovered in 1994. They were Darmstadtium (atomic number 110) and Roentgenium (atomic number 111). Copernicium was discovered in 1996 and Fleroovium was discovered in 1999.
How many radioactive elements are discovered uptill now?
40 elements are discovered uptil now
How could Mendeleevs table be used to predict the properties of elements that had not been discovered?
Comparing the properties of the new element with the properties of the other elements in the group we can make this prediction.
A new organism is discovered at the bottom of the ocean. A scientist is determining the composition of elements found in the tissues of the organism. Which elements will most likely be found?
carbon, hydrogen, nitrogen, and oxygen
Are there no new elements to be discovered?
No. Uranium is the heaviest naturally occurring element. More elements can be prepared artificially. New isotopes of the element may be discovered.
Are there more new elements left to be discovered?
yes there is
Elements on periodic table?
There are 118 Elements But It Is Constantly Changing As New Elements Are Being Discovered By The Power Of Nuclear Fusion.
Did Mendeleev leave gaps in the table for undiscovered elements?
he predicted that there were elements not yet discovered so yeah.
What was the last element to be discovered?
unbibium (122) @ Hebrew University of Jerusalem
Are new dangerous elements being invented every day?
No, they are not. It has been 8 years since any new elements on the periodic table were synthezided or discovered. Th last element discovered was ununoctium, atomic number 118.
How do new elements get added to the periodic table?
PeuPeuKarlrulez777:they need to be discovered somewhere in the world
What does discovering polonium and radium mean?
The simple meaning is that new chemical elements were discovered.
How many elements were there on the periodic table in 1960?
There were 102 known elements on the periodic table in 1960.
What elements were discovered by Sir Isaac Newton?
Isaac Newton made many discoveries in science, but did not discover any new elements.
Was Mendeleev's periodic table accurate enough that he was able to use it to predict the existence and several properties of certain elements that had not yet been discovered?
Mendeleev was able to predict the properties of the elements that were not discovered at that time. He left gaps for these elements in his Periodic Table.
What are Elements discovered in the last 100 years?
which elements were discovered in the last 100 years
