What element has an atomic number 31?
Gallium
Gallium – Element information, properties and uses | Periodic Table.
Is californium a metal?
Californium is a radioactive metal. Californium is a very strong neutron emitter. It is used in portable metal detectors, for identifying gold and silver ores, to identify water and oil layers in oil wells and to detect metal fatigue and stress in aeroplanes. Californium has no known biological role.
What type of metal is polonium?
chalcogen
Polonium is a chalcogen. A rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth.
What is gallium atomic number 31?
Gallium is a chemical element with symbol Ga and atomic number 31. Classified as a post-transition metal, Gallium is a solid at room temperature….Gallium.
| Atomic Mass | 69.723u |
|---|---|
| Electron Configuration | [Ar]4s23d104p1 |
| Oxidation States | +3 |
| Year Discovered | 1875 |
What color is californium?
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.
Where is californium found?
Only two sites produce californium-252: the Oak Ridge National Laboratory in the United States, and the Research Institute of Atomic Reactors in Dimitrovgrad, Russia.
Is Po a metal?
polonium (Po), a radioactive, silvery-gray or black metallic element of the oxygen group (Group 16 [VIa] in the periodic table).
What color is indium?
silvery white
Indium is a soft, ductile, manleable, lustrous metallic metal. Its colour is silvery white and it has a face-centered tetragonal structure. It is liquid over a wide range of temperatures, like gallium that belongs to its same group.
How expensive is californium?
Californium is another radioactive element, used primarily in research and in instruments employed in the petroleum industry. A gram of californium-252 can cost $27 million per gram, which makes it considerably more expensive than lutetium, but less than francium.