Education
Nobelium (No)
Element with atomic number 102, category: Actinide, a solid at room temperature.
Element 102 of 118
Actinide
Nobelium
Group 16, Period 7 (actinide series)
Common Uses
Research
Electron Diagram
About Nobelium
Nobelium is a chemical element with the symbol No and atomic number 102, meaning every atom has 102 protons in its nucleus. It is classed as Actinide and is a solid at room temperature. Its atomic mass is about 259 atomic mass units (u).
On the periodic table, Nobelium sits in group 16, period 7 (actinide series), which determines how many electron shells it has and how it tends to react with other elements.
Uses of Nobelium
In daily life and industry, Nobelium is used for Research. These uses are closely tied to the typical properties of elements in the Actinide category.
Electron Structure of Nobelium
Using a simplified electron shell model (at most 2 electrons in the first shell, 8 in the second, 18 in the third, and so on), Nobelium has 6 electron shells, with an approximate arrangement of 2, 8, 18, 32, 32, 10 electrons from the innermost shell to the outermost. This is a simplified learning model, not the full electron configuration that accounts for the s, p, d and f subshells.
Explore Other Elements
Want to see another element or try the element symbol quiz? Go back to the Interactive Periodic Table to explore all 118 chemical elements.