Nobelium (No)
| Symbol | No |
| Atomic Number | 102 |
| Atomic Mass | 259 g.mol -1 |
| Discovered by | Nobel Institute for Physics in 1957 |
| Group | Actinides | Melting point | 827°C,1521°F,1100K |
| Period | 7 | Boiling point | Unknown |
| Block | f | Density (g cm−3) | Unknown |
| Atomic number | 102 | Relative atomic mass | [259] |
| State at 20°C | Solid | Key isotopes | 259 No |
| Electron configuration | [Rn] 5f13 6d1 7s2 | CAS number | 10028-14-5 |
| ChemSpider ID | 23207 | ChemSpider is a free chemical database | |
- Nobelium is named after Alfred Nobel, the inventor of dynamite. It is a man-made element made in low quantities. It is a part of the actinide series. Until now twelve isotopes have been determined among them 259 No is the most stable isotope. Nobelium is a highly radioactive and synthetic metal. It can be produced by nuclear bombardment that is by irradiating a californium-249 target with carbon-12 ions. (1b).
- They are generally difficult to detect. In the periodic table, one can find this metal to the left of the actinide lawrencium and to the right of actinide mendelevium. It is predicted that Nobelium is a divalent metal. The behavior of this metal is better known only in aqueous solution. Hence a lot of the properties of the element are unknown.
- An atom of Nobelium consists of hundred and two electrons. They usually behave as valence electrons.
- It has no uses other than for scientific research.
- Since it possesses a short-half life, it does not have any harmful effects on the environment. It is not yet discovered in the earth’s crust and it can be easily decomposed into other elements due to its instability.
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