The seventh row of the table was completed in 2016 when Tennessine, Nihonium, Moscovium, and Oganesson were added. Elements ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

This leads us to ask an important question: Is there a maximum number of elements included in the periodic table? The answer ...

John Newlands took issue with the credit that Mendeleev was given for the periodic table in his book ‘On the Discovery of ... "I consider it well to observe that no law of nature, however general, has ...

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, ...

No portion of this web site may be reproduced ... The finished puzzle is a section of the periodic table, so the numbers on each tile are their atomic numbers - that means they increase from ...

Want to learn more about this centerpiece of chemistry? Take your pick from this collection of links about elements and the periodic table! Build an element ball, solve periodic puzzles, and check out ...

The periodic table's most electronegative element is fluorine (3.98 on ... but the value for cesium was experimentally revised to the 0.79 value. There is no experimental data for francium, but its ...

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 ...

ruled against this name on the grounds that no element had ever been given the full name of a scientist. Instead they proposed bohrium, which became the officially recognised name in 1997. In the ...

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 ...