The new element doesn't have an official name yet, so scientists are calling it ununpentium, based on the Latin and Greek words for its atomic number, 115. (Related: Read a feature on element ...

With an atomic number of 118, oganesson filled the final gap in the seventh period of the periodic table as a noble gas. However, the chemical and physical properties of the new element have proven ...

Henry Moseley’s X-ray studies showed that the “atomic number” of an element is not an arbitrary number but associated with a specific measurable property of the atomic nucleus. It is the number of ...

These “new” elements would be stable around atomic number 164, which the researchers call an “island of nuclear stability.” The results of the study were published in mid-September in the ...

This number indicates the number of protons in the atomic nucleus. Several years ago, scientists managed to create element 118. Now it is time to try elements 119 and 120.

The highest atomic number element in the periodic table is 118 but scientists believe that 33 Polyhymnia could be hiding an element of atomic number 164. It's unknown whether elements with more ...

Uranium has 92. When the two fuse, they produce an artificial element with 93 protons, hence an atomic number of 93. In 1940, ... For each step upward in atomic number, ...

Is it possible to make an element zero? ... Neutronium is theoretically devoid of protons, so on face value it fits the bill, as no protons would mean no atomic number.

We learn the periodic table as the elements arranged according to the atomic number, which is an integer, a whole number. That's the number of protons in an atom of that element.