mass number = protons + neutrons. Name the first 20 elements. The first 20 elements of the periodic table are as follows: H – Hydrogen, He – Helium, Li – Lithium, Be – Beryllium ...

Two of the heaviest elements on the periodic table were officially named on Thursday ... and livermorium (Lv). The names were chosen to honor the laboratories that first created the elements ...

Chemistry’s highest gatekeepers have accepted the newly proposed names for elements 113, 115, 117 and 118. Please welcome to the periodic table: nihonium, moscovium, tennessine and oganesson.

radioactive elements were actually added to the periodic table late last year and given these temporary and unremarkable names: ununtrium, ununpentium, ununseptium and ununoctoium. But the IUPAC ...

It’s now time to say hello, officially, to the four new additions to the Periodic Table of Elements. This week, the International Union of Pure and Applied Chemistry (IUPAC) approved the names ...

Numbers 114 and 116 will sit "down in the lower-right corner of the periodic ... of the list of elements." The union has "finicky rules about what it considers an acceptable name." ...

Numbers 114 and 116 will sit "down in the lower-right corner of the periodic ... of the list of elements." The union has "finicky rules about what it considers an acceptable name." ...