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Nobelium (No)

Element with atomic number 102, category: Actinide, a solid at room temperature.

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Element 102 of 118

Actinide

No

Nobelium

Group 16, Period 7 (actinide series)

Atomic Number
102
Atomic Mass
259 u
State at Room Temperature
Solid

Common Uses

Research

Electron Diagram

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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.

Frequently Asked Questions

The chemical symbol of Nobelium is No, with atomic number 102 and an atomic mass of about 259 u.
Nobelium is in the Actinide category and is a solid at room temperature.
Nobelium is in group 16, period 7 (actinide series) of the periodic table.
Nobelium is commonly used for Research.
Using the simplified Bohr model, Nobelium has 6 electron shells, with an approximate arrangement of 2, 8, 18, 32, 32, 10 electrons from the innermost shell to the outermost.