The group of rare earth elements (REEs) comprises a total of 17 elements, all of which possess similar chemical properties. In addition to the two lightest elements, scandium and yttrium, the group ...

With the addition of four new elements, the seventh row of the periodic table is officially full, the International Union of Pure & Applied Chemistry (IUPAC) announced on Dec. 30. A joint committee ...

MinnPost’s reporting is always free, but it isn’t free to produce. We rely on donations from our readers to fund our independent journalism. WASHINGTON — Five years of preparation, eight months ...

CORRECTION: On Jan. 7, 2016, this story was changed to correct the atomic number for livermorium and to clarify that IUPAC was the group that gave temporary names to the new elements. With the ...