Applications of plutonium: * explosive in nuclear weapons * nuclear fuel in nuclear power reactors * the isotope 238Pu is used as energy source in spacecrafts or other applications (radioisotope thermoelectric generators); the chemical form is plutonium dioxide. * radioisotopic heating sources * neutron generator, as Pu-Be source
vital, important, necessary, critical, crucial, key, indispensable
They don't mean the very same thing. Critical means nitpicking. Essential means necessary. However, some people do say that they are the similar as critical also means exacting.
Plutonium is extremely explosive when the critical mass is attained.
The critical mass of plutonium is lower, plutonium is not so expensive as highly enriched uranium, the technology to obtain plutonium is more simple than the isotopic separa-tion of uranium, etc.
Applications of plutonium: * nuclear fuel in nuclear power reactors; can contribute to use uranium-238 which is fertile.Disadvantages of plutonium:- plutonium is radioactive - plutonium is toxic - plutonium is flammable - in some conditions (of mass and geometric form) plutonium can reach the critical mass
Plutonium is radioactive, toxic, flammable in some conditions, can explode if the critical mass is reached; plutonium can be safe only if all the working rules are strictly observed.
Plutonium is more dangerous: the specific activity is greater, the critical mass is smaller, the chemical toxicity is greater.
Uranium is a natural chemical element, plutonium is an artificial element (but note that plutonium exist also naturally in the earth crust in extremely low concentrations). Uranium has the atomic number 92 and plutonium 94. The critical mass of uranium is greater than the critical mass of plutonium. The melting and boiling points of U and Pu are different. Uranium has an orthorombic crystalline structure; the structure of plutonium is monoclinic. And many other physical and chemical properties are different.
No
The Mission Essential Task List is also known as METL. The most critical aspect is for all to understand and know the essential tasks and critical tasks.
because it causes lung/health issues and diseases.......
Plutonium