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 ...

The table shows the melting points of five alkali metals. Use this information to describe how melting point changes in group 1.

This video explains the periodic table, containing all the known elements arranged in groups and periods. Elements in the same group of the periodic table show trends in physical properties ...

Meyer was just four years older than Mendeleev, and produced several Periodic Tables between 1864-1870. His first table contained just 28 elements, organised by their valency (how many other atoms ...

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

Of particular interest is the naming of element 118. Because element 118 falls within group 18 of the periodic table, it is a noble gas, with a particular naming pattern. each of the elements in ...

Rutherfordium, the 104th element on the periodic table, was first synthesized artificially ... is afforded the right to name it, but when two groups have competing discovery claims this becomes ...

When the first periodic table was formulated by Mendeleev, it was the only group that contained just a single known element — manganese. In the early twentieth century, several claims were made ...