No. There are 118 currently known elements, of which 98 exist in nature. The other 20 have only been produced in laboratories. Elements beyond that would be too unstable to exist.
The greatest triumph of Mendeleev's periodic table was his predictions of the existence of the undiscovered elements.
There are 118 known chemical elements as of 2011.
Atomic numbers.
All elements are different from each other, that is why they are called elements. They have a different number of subatomic particles making them different.
No two different elements will have the same number of protons.
No around 118.
My guess is that there are isotopes and ions of each element that count as different atoms.
There aren't 1000 different alphabets in existence. You might possibly be confusing the word "alphabet" with the word "letter."
The greatest triumph of Mendeleev's periodic table was his predictions of the existence of the undiscovered elements.
Dalton
1000
Dalton believed that there was a different atom for each element that there was, and that these atoms made up the elements that were in existence. He did not say exactly how these atoms were different, just that they were different. Dalton also believed that all of the atoms for a given element were exactly alike in every way.
a lot probaly over 1000 elements
Every element has a different atomic number. With the periodic table, they could organize accordingly to the subatomic particles.
There are 118 known chemical elements as of 2011.
1000 years ago
The mosaic element of contemporary art owes its existence to the French revolution.