ANSWER: Methods for the Separation of Isotopes: Isotopes have different physical properties, so they can be separated by the methods based on these properties. Some of these methods are: 1) Gaseous diffusion 2) Thermal diffusion 3) Electromagnetic separation 4) Laser…
ANSWER: Function of Electrometer: The electrometer collects the positive ions and develops the electric current. The strength of the current gives the relative abundance of the isotope. (Ref. An Insight Into Objective Chemsitry-11, Ch-01, Q. No. 25)
ANSWER: Function of Magnetic Field: When an accelerated beam of isotopic positive ions is allowed to pass through a strong magnetic field, the field makes them move in a circular path. The ions are, thus, separated on the basis of…
ANSWER: Function of Ionization Chamber: In ionization chamber, fast moving electrons are thrown upon the vapours of the substance. The atoms of the isotopic element are converted into positively charged ions. (Ref. An Insight Into Objective Chemsitry-11, Ch-01, Q. No.…
ANSWER: Dempster’s Mass Spectrometer: (Ref. An Insight Into Objective Chemsitry-11, Ch-01, Q. No. 22)
ANSWER: Mass Spectrum: “Mass spectrum is a plot of data in such a way that m/e is plotted as abscissa (x-axis) and the relative number of ions as ordinate (y-axis).” The number of peaks represents the number of isotopes while…
ANSWER: Principle of Mass Spectrometry: In mass spectrometry, the gaseous positive ions formed from isotopes are separated on the basis of their mass to charge ratio (m/e) and then recorded in the form of peaks. This is the basic principle…
ANSWER: Mass Spectrometer & Mass Spectrometry: “The instrument used to measure the exact masses of the isotopes of an element is called mass spectrometer and the technique is called mass spectrometry.” (Ref. An Insight Into Objective Chemsitry-11, Ch-01, Q. No.…
ANSWER: Mono-Isotopic Elements: “The elements having only a single isotope are called mono-isotopic elements.” Examples: Gold, Iodine, arsenic, Fluorine, etc. (Ref. An Insight Into Objective Chemsitry-11, Ch-01, Q. No. 18)
ANSWER: Chemical properties depend upon atomic number, i.e., the number of protons or the number of electrons and their arrangement in valence shells. Since, isotopes have same atomic number, they have same chemical properties. Physical properties depend upon atomic masses…