The periodic table is getting an update. The International Union of Pure and Applied Chemistry announced that four new chemical elements have been assigned atomic numbers 113, 115, 117 and 118.

Mendeleev’s work Here is a list of periodic table elements with their names, symbols, atomic numbers, atomic masses, number of electrons and protons in a tabular format: Atomic Number Element ...

Rare earth elements have a number of useful ... at the bottom of the periodic table, as well as the elements yttrium and scandium. The most valuable of these are neodymium, praseodymium, terbium ...

neodymium, and praseodymium. Ferromagnetic elements tend to have unpaired electrons, like those from the middle of the d- and f-blocks of the periodic table. But what about nitrogen, all the way ...

Then, gradually, as you move across the periodic table to heavier atoms in the lanthanide series, that 4f subshell finally fills up with its maximum number of 14 electrons. Why would this matter ...