There are some exceptions to this rule in the transition elements, which fill the shorter columns at the center of the periodic table. These transition elements have partially filled d-orbitals ...

The transition metals are in the block in the middle of the Periodic Table, between Groups 2 and 3. They are all metals and include many common metals such as chromium (Cr), iron (Fe), nickel (Ni ...

The periodic table of elements is a landmark categorization developed in 1869 by the Russian chemist and inventor Dmitri ...

The periodic table of elements—also known as Mendeleev’s table—was developed in 1869 by Russian chemist Dmitri Mendeleev. It organizes all known chemical elements by their atomic number ...

Elemental music: Interactive periodic table turns He, Fe, Ca into Do, Re, Mi. ... As for zinc, "The first row of transition metals have very complex, dense grating sounds.

Many scientists worked on the problem of organizing the elements, but Dmitri Mendeleev published his first version of the periodic table in 1869, and is most often credited as its inventor. Since then ...

All of which go to show how the periodic table of elements has become the iconic symbol of science. Mark Lorch is professor of Science Communication and Chemistry at the University of Hull.