Which of the following elements is nonradioactive? (1) Uranium (2) Thorium (3) Plutonium (4) Zirconium

Which of the following elements is nonradioactive? (1) Uranium (2) Thorium (3) Plutonium (4) Zirconium
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(4) Zirconium Explanation: Zirconium is non-radioactive. It is a chemical element with the symbol Zr, atomic number 40 and atomic mass of 91.224. The name of zirconium is taken from the mineral zircon, the most important source of zirconium. It is a lustrous, grey-white, strong transition metal that resembles titanium.
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This natural fiber obtained from the stems of a plant of the nettle family has found popularity in modern fibers with a high wet strength, absorbent but dries quickly, it can be spun or woven, has a high rot and mildew resistance and elasticity 50 percent greater than that of CHEM-92; Multiple Choice: What transuranic element is often used in satellites as a source of heat or power? w) Plutonium-238 x) Strontium-90 y) Cesium-137 z) Uranium-235

Description : This natural fiber obtained from the stems of a plant of the nettle family has found popularity in modern fibers with a high wet strength, absorbent but dries quickly, it can be spun or woven, has a high rot ... a source of heat or power? w) Plutonium-238 x) Strontium-90 y) Cesium-137 z) Uranium-235

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Description : Which one of the following is not a radioactive element? (1) Uranium (2) Thorium (3) Radium (4) Cadmium

Last Answer : (4) Cadmium Explanation: Radioactivity refers to the particles which are emitted from nuclei as a result of nuclear instability. Because the nucleus experiences the intense conflict between the two ... show radioactive properties while the fourth one does not show any kind of radioactive properties.

Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

Description : Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

Last Answer : (1) Haematite : Copper Explanation: Haematite is the mineral form of iron oxide (Fe2O3), one of several iron oxides. It is mined as the main ore of iron. Hematite is harder than pure iron, but much more brittle.

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Description : Which one of the following minerals is found in Monazite sand? (1) Potassium (2) Uranium (3) Thorium (4) Sodium

Last Answer : (3) Thorium Explanation: Monazite is a reddish-brown phosphate mineral containing rare earth metals. It occurs usually in small isolated crystals. There are actually at least four different kinds of monazite, depending on relative ... 5.0 to 5.5 and is relatively dense, about 4.6 to 5.7 g/ cm3.

Uranium eventually decays into a stable isotope of — (1) Radium (2) Thorium (3) Lead (4) Polonium

Description : Uranium eventually decays into a stable isotope of — (1) Radium (2) Thorium (3) Lead (4) Polonium

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Lead-206 is the final product of the radioactive decay series named the: w) thorium series x) actinium series y) uranium series z) neptunium series

Description : Lead-206 is the final product of the radioactive decay series named the: w) thorium series x) actinium series y) uranium series z) neptunium series

Last Answer : ANSWER: Y -- URANIUM SERIES 

The heaviest naturally occurring element is: (1) Mercury (2) Polonium (3) Thorium (4) Uranium

Description : The heaviest naturally occurring element is: (1) Mercury (2) Polonium (3) Thorium (4) Uranium

Last Answer : Uranium

Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

Description : Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

Last Answer : Haematite : Copper

Uranium eventually decays into a stable isotope of – (1) Radium (2) Thorium (3) Lead (4) Polonium

Description : Uranium eventually decays into a stable isotope of – (1) Radium (2) Thorium (3) Lead (4) Polonium

Last Answer : Lead

Which one of the following minerals is found in Monazite sand ? (1) Potassium (2) Uranium (3) Thorium (4) Sodium

Description : Which one of the following minerals is found in Monazite sand ? (1) Potassium (2) Uranium (3) Thorium (4) Sodium

Last Answer : Thorium

Which one of the following is not a radio-active element ? (1) Uranium (2) Thorium (3) Radium (4) Cadmium

Description : Which one of the following is not a radio-active element ? (1) Uranium (2) Thorium (3) Radium (4) Cadmium

Last Answer : Cadmium

Radioactive disintegration of uranium ultimately results in formation of (1) radium (2) thorium (3) polonium (4) lead

Description : Radioactive disintegration of uranium ultimately results in formation of (1) radium (2) thorium (3) polonium (4) lead 

Last Answer : lead

Which one of the following elements is essential for the construction of nuclear reactors? (1) Cobalt (2) Nicke (3) Zirconium (4) Tungsten

Description : Which one of the following elements is essential for the construction of nuclear reactors? (1) Cobalt (2) Nicke (3) Zirconium (4) Tungsten

Last Answer : (3) Zirconium Explanation: Zirconium is an essential element for the construction of nuclear reactors.

What do uranium , plutonium , hydrogen produce ?

Description : What do uranium , plutonium , hydrogen produce ?

Last Answer : Radioactive elements like uranium , plutonium etc. When left unmanaged, they can be left astray and lose the right path.

What is Uranium , Neptunium Plutonium ?

Last Answer : Uranium , Neptuneum, Plutonium are radioactive substances.

What is the difference between plutonium and uranium?

Description : What is the difference between plutonium and uranium?

Last Answer : For more informations about uranium: see http://en.wikipedia.org/wiki/UraniumFor more informations about plutonium: see http://en.wikipedia.org/wiki/PlutoniumFor a short answer to an identical question, see : What_are_the_differences_between_plutonium_and_uranium

Fuel for a fast breeder reactor is (A) Plutonium (B) Uranium (C) Radium (D) Neptunium

Description : Fuel for a fast breeder reactor is (A) Plutonium (B) Uranium (C) Radium (D) Neptunium

Last Answer : (A) Plutonium

Specific gravity of uranium and plutonium is about (A) 8 (B) 13

Description : Specific gravity of uranium and plutonium is about (A) 8 (B) 13

Last Answer : (A) 8