For elements 93-118, which are lab-created trans-uranium elements (elements beyond uranium, which has an atomic number of 92), there is no "natural" abundance, according to the Los Alamos National ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

Another five elements make up about 0.85% of the remaining mass: sulfur, potassium, sodium, chlorine, and magnesium. All of these 11 elements are essential elements. The remaining 0.15% of the ...

The atomic weight may therefore be roughly estimated as 91.4 or 91.2, according to whether the mass number 96 is included as an isotope or not. Nature - The Mass Spectra of Zirconium and some ...