actiniums वाक्य
उदाहरण वाक्य
मोबाइल
- Instead, actinium is prepared, in milligram amounts, by the neutron irradiation of 226 in a nuclear reactor.
- Actinium is mostly present in uranium-containing, but also in other minerals, though in much smaller quantities.
- Like lanthanum, actinium has oxidation of + 3, but it is less reactive and has more pronounced basic properties.
- The first element of the actinides, actinium gave the group its name, much as lanthanum had done for the lanthanides.
- It may possibly be produced by acting with a mixture of hydrogen sulfide and carbon disulfide on actinium oxide at 1000 �C.
- Scheinberg said the cage, made of carbon and nitrogen, is shaped like a ring with the actinium-225 atom inside.
- The new name meant " parent of actinium " and reflected the fact that actinium is a product of radioactive decay of protactinium.
- The new name meant " parent of actinium " and reflected the fact that actinium is a product of radioactive decay of protactinium.
- Friedrich Oskar Giesel independently discovered actinium in 1902 as a substance being similar to lanthanum and called it " emanium " in 1904.
- When alarms frequently sounded, the workers were told the devices were responding to radon rather than the actinium, according to the lawsuit.
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