OnlineCBT
Chemistry · Structure of atom
हिन्दीConsider the following statements related to atomic structure and sub-atomic particles: (I) J.J. Thomson proposed that the positive charge is uniformly distributed in a sphere with electrons embedded in it. (II) Rutherford's nuclear model accounts for the solar-system-like circular motion of electrons around the dense nucleus. (III) The charge on an electron was precisely measured by J.J. Thomson using cathode ray deflection. (IV) Isotopes share identical chemical properties due to having the same number of electrons and protons. Which combination of statements is correct?
Correct answer · Option 1
(I), (II) and (IV) only
Explanation
Statements (I), (II), and (IV) are correct. Statement (III) is false because electron charge was measured by Millikan, not Thomson.
