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Because we haven't discovered enough elements to go that far into the orbitals
Three: nonmetals, semimetals (or metalloids), and metals.
Is it 80 or 88
Elements with 133 protons or 197 protons have not been discovered or named so far.
53 official moons
63 elements had been discovered so far.
out of the 118 elements discovered so far, most of them are metals
the total number of elemetns humanly known is 118
117 know ones (some are yet to be discovered)
113 elements.
Because we haven't discovered enough elements to go that far into the orbitals
Three: nonmetals, semimetals (or metalloids), and metals.
Every element recognized so far has a unique symbol in the periodic table. Some has one letter in their symbol, where many have two letters. A set of recently discovered elements using nuclear fission reactions have three.
117 Elements have been discovered.One more element has now been discovered bringing the total number now to 118 elements
Is it 80 or 88
Thus far (2012) there have been 118 unique elements identified, the most recent being Ununoctium, discovered in 2003. >> Ununoctium: symbol Uuo, at. no. 118, at. wt. 294 ... it's man made and Radioactive.
As of June 2017, a total of 118 elements are known.