GENERAL KNOWLEDGE

GK

TECHNOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Isotopes are separated by
A
crystallisation
B
sublimation
C
distillation
D
filtration
Explanation: 

Detailed explanation-1: -The heavier isotopes sink and the lighter isotopes rise, where they are easily collected. The process was developed in the late 1960s by scientists at Los Alamos National Laboratory. This process is also called “cryogenic distillation".

Detailed explanation-2: -Gaseous Diffusion Gaseous diffusion’s principle was simple: molecules of a lighter isotope would pass through a porous barrier more readily than those of a heavier isotope. The tiny weight difference between U-235 and U-238 meant that initial separation would be negligible.

Detailed explanation-3: -Isotopes of an element can be separated by using mass spectrometer. It is possible because of the difference in the electron number of isotope.

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