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

The periodic table’s arrangement also allows scientists to discern trends in element properties, including electronegativity, ionization energy, and atomic radius. Many scientists worked on the ...

Meyer did contribute to the development of the periodic table in another way though. He was the first person to recognise the periodic trends in the properties of elements, and the graph shows the ...

Mrs Roberts: Well, elements that have similar properties to each other are put into vertical columns called groups. Now, the table is called the periodic table because the elements with similar ...

There are repeating patterns in the properties of the elements, which give the periodic table its name. Elements with similar properties are arranged to form columns (groups). The periodic table ...

The periodic table captures a subtle pattern that runs ... As you keep adding protons, you find that similar properties recur in every 8th element. Lithium, for example, with an atomic number ...

It is expected to correlate with numerous physical properties of materials, including mechanical (such as hardness ... which is very practical and accurately reproduces both molecules' energies and ...

The periodic table has 118 elements in total ... like famed chemist Pekka Pyykkö used computer models and identified ...

The Periodic Table of Elements is a testament to the ... many of its chemical properties remained a mystery. This didn’t stop ...