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Number of paired electrons in O2​ mole according to MOT

Number of paired electrons in mole according to MOT

  1. 7
  2. 8
  3. 16
  4. 14
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STRUCTURE OF ATOM material of electrodes and the nature of the gas present in the cathode ray tube. Thus, we can conclude that electrons are basic constituent of all the atoms. 2.1.2 Charge to Mass Ratio of Electron In 1897. British physicist J.J. Thomson measured the ratio of electrical charge (e) to the mass of electron (m) by using cathode ray tube and applying electrical and magnetic field perpendicular to each other as well as to the path of electrons (Fig. 2.2). When only electric field is applied, the electrons deviate from their path and hit the cathode ray tube at point A (Fig. 2.2). Similarly when only magnetic field is applied, electron strikes the cathode ray tube at point C. By carefully balancing the electrical and magnetic field strength, it is possible to bring back the electron to the path which is followed in the absence of electric or magnetic field and they hit the screen at point B. Thomson argued that the amount of deviation of the particles from their path in the presence of electrical or magnetic field depends upon: (0) the magnitude of the negative charge on the particle, greater the magnitude of the charge on the particle, greater is the interaction with the electric or magnetic field and thus greater is the deflection. (i) the mass of the particle - lighter the particle, greater the deflection. Cathode Anode 1910 an 109 N ex (ii) the strength of the electrical or magnetic field- the deflection of electrons from its original path increases with the increase in the voltage across the electrodes, or the strength of the magnetic field. By carrying out accurate measurements on the amount of deflections observed by the electrons o on the electric field strength or magnetic field strength. Thomson was able to determine the value of e/m_ as: this only (2.1) m₂ Where m, is the mass of the electron in kg and e is the magnitude of the charge on the electron in coulomb (C). Since electrons are negatively charged, the charge on electron is-e. 2.1.3 Charge on the Electron = 1.758820 x 10" C kg' R.A. Millikan (1868-1953) devised a method known as oil drop experiment (1906 14), to determine the charge on the electrons. He found the charge on the electron to be 1.6 x 10¹9 C. The present accepted value of electrical charge is 1.602176 x 10 "C. The mass of the electron (m) was determined by combining these results with Thomson's value of e/m, ratio. m₂ = 1.602176 x 10 C 1.758820 x 10¹C kg c/m₂ = 9.1094×10¹ kg A с 31² Fluorescent screen -electric held (2.2) Magnet Jor Fig. 2.2 The apparatus to determine the charge to the mass ratio of electron straigh path Magneh fiel
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Question Text
Number of paired electrons in mole according to MOT
Updated OnDec 19, 2022
TopicChemical Bonding
SubjectChemistry
ClassClass 11
Answer Type Video solution: 1
Upvotes56
Avg. Video Duration9 min