But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can come top in our periodic table quiz. The periodic table of elements is a ...

The modern periodic table has no gaps and has extended beyond what Mendeleev predicted. There were 64 elements when Mendeleev was working on his table and he predicted 4 more. Now the periodic ...

Four have filled gaps in the periodic table of 92 elements and five have extended it beyond uranium By I. Perlman & G. T. Seaborg Join Our Community of Science Lovers!

The modern periodic table has no gaps and has extended beyond what Mendeleev predicted. There were 64 elements when Mendeleev was working on his table and he predicted 4 more. Now the periodic ...