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 also had trouble figuring out what to do with the lanthanides – a band of 15 elements including lanthanum (La), cerium (Ce) and neodymium ... It is the number of protons in an atom and thus ...

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 ...

Rare earths are the world’s most in-demand elements. Marco Magrini reports on the battle for their future — and ours ...

and valence (the maximum number of electrons in an atom's outer shell, which are available for bonding with other atoms). The Periodic Table was most recently updated in 2016, when four new ...

Wilson's interested in dysprosium, which is so hidden in the periodic table that you'd be forgiven ... You may be familiar with the REE neodymium as the metal used to make crazy strong magnets.

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 ...

AN important result of the development of Moseley's atomic number rule has been the impetus ... It is true that later arrangements of the Periodic Table indicated that eka-csesium, eka- and ...

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 ...

For millions of years, nature has basically been getting by with just a few elements from the periodic table. Carbon ... yttrium and neodymium. In the past two decades, there has been an increase ...

In a nutshell, the outcome of the team's research is a handy periodic table of primes, or the PTP, pointing the locations of prime numbers. The research is available as a working paper in the SSRN ...

In other words, it contains elements not on the periodic table at all. These elements would be stable around atomic number 164, which is far denser that Osmium, the densest known naturally ...