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Is californium a stable element?
Californium is a radioactive chemical element with the symbol Cf and atomic number 98. The most stable of californium’s twenty known isotopes is californium-251, which has a half-life of 898 years. This short half-life means the element is not found in significant quantities in the Earth’s crust.
Is californium a reactivity?
Californium is a synthetic radioactive silvery-white metal of moderate chemical reactivity. It is a relatively soft, malleable metal and is easily cut with a razor-blade. It slowly tarnishes in air to the oxide at room temperature. Californium-252 is a very strong neutron emitter.
Is californium a metal or nonmetal?
actinide
Californium is a synthetic, radioactive element not found in nature. It is an actinide: one of 15 radioactive, metallic elements found at the bottom of the periodic table. The pure metal is silvery-white, malleable and so soft it can be easily sliced with a razor blade.
Is californium a transition metal?
One of Albrecht-Schmitt’s studies, published in the journal Nature Communications, revealed that californium is a transitional element, meaning that it helps link one part of the periodic table to the next.
What state of matter is californium?
Basic Information
| Name | Californium |
|---|---|
| Standard state | Solid at 298 K |
| CAS Registry ID | 7440-71-3 |
| Group name | Actinoid |
| Period in periodic table | 7 |
Is Californium stable in aqueous solution?
Californium (III) is the only ion stable in aqueous solutions, all attempts to reduce or oxidize californium (III) having failed. The isotope 249Cf results from the beta decay of 249Bk while the heavier isotopes are produced by intense neutron irradiation by the reactions.
What is the chemical reaction of californium?
Californium metal is fairly reactive. On standing in air or moisture, small pieces or foils of Cf metal quickly form an oxide but not in a violent reaction.
Are all californium isotopes radioactive?
All californium isotopes are radioactive. Cf-251 is the most stable with a half-life of about 800 years. The isotope Cf-252 is a very strong neutron emitter, meaning it has the unusual property of giving off neutrons when it breaks apart. Isotopes that behave in this way are very unusual, according to Chemistry Explained.
What is the half-life of californium?
Californium’s most stable isotope, californium-251, has a half-life of about 898 years. It decays into curium-247 through alpha decay or decays through spontaneous fission. See more information at the Californium compound page.