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Dmitri Mendeleev, although he did it differently we than it is right now. He pridected elements, and now, they've been discovered. Some people discovered elements Mendeleev didn't predict. Most of them were radioactive, like rutherfordium. (Of course, that element was synthetic. There are only 92 natural elements.) Mendeleev used different symbols than we do now, e.g. yttrium was Yt. The elements Mendeleev predicted were gallium, germanium, and scandium.
What else can I help you with?
What is element H on the periodic table?
The element 'H' is hydrogen, and is NO. 1 in the Periodic Table.
What element is no on the periodic table?
any of the elements who's existence we have proven is on the periodic table, if something isnt on the table it either hasn't been discovered, it isn't a pure element, or it doesn't exist
What is Hn in the periodic table of elements?
There is NO element in the Periodic Table with the symbol 'Hn'. The nearest is hydrogen (H).
What is element 56 on the periodic table?
Element 56 on the periodic table is Barium (Ba).
Which is the 84th element in the periodic table?
84th element is polonium (Po). It is in the same Group as Oxygen.
What element in the periodic table might have been discovered in Germany?
Germanium
What element, when discovered, empirically supported Mendeleev's table?
The element gallium, discovered in 1875, empirically supported Mendeleev's periodic table by fitting into the predicted gaps in the table based on its properties.
What element was named fro the man who fist discovered the periodic table?
Mendelevium.
What was the most recent element found in the periodic table and when was it discovered?
rubidium 1957
How will the modern periodic table be disturbed if isotopes of an element are discovered now?
The periodic table would be disturbed only if isotopes of a new element are discovered, because a periodic table is based on order of atomic number, not atomic mass. If new isotopes of a previously known element were discovered, the atomic mass shown in the periodic table might be changed, but this is very unlikely because the atomic masses shown in a periodic table are based on the naturally occurring distribution of isotopes, and any newly discovered isotopes would probably occur only in very small fractions of the total.
Are the element sin the periodic table the only elements discovered?
Yes. The elements in the Periodic Table are the only elements that have been discovered. However, we are still discovering and synthesising more elements.
What is the element in the periodic table named after the person who discovered nucleus?
It is rutherfordium number 104
Why did mendeleev not include germanium in the periodic table?
He could not because it had not yet been discovered when he created the table. However he was able to determine that an element was missing at that location and predict the properties it would have when it was discovered. When germanium was discovered and named, his predictions were found to be very accurate.
If a new element was discovered with a -1 ion what group would it belong to in the periodic table?
17
Is there an element symbol R?
nope...at least none that have been discovered yet
What is the name of the element As in the periodic table?
The element abbreviated with As on the periodic table is Arsenic
Which scientist discovered modren periodic table?
Moseley discovered the modern periodic table.
