Home
Class 11
CHEMISTRY
Which of the following statements about ...

Which of the following statements about the electron is incorrect?

A

It is a negatively charged particle

B

The mass of electron is equal to the mass of neutron

C

It is a basic constituent of all atoms

D

It is a constituent of cathode rays

Text Solution

Verified by Experts

The correct Answer is:
B
The mass of electron is very small as compared to the mass of the neutron.
Mass of electron = `9.1xx10^(-31)kg`
Mass of neutron = `1.67xx10^(-27)kg`
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF ATOM

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Atomic Number, Mass Number, Atomic Species) |27 Videos

  • STRUCTURE OF ATOM

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Atomic Models and Planck.s Quantum Theory) |75 Videos

  • STATES OF MATTER

    ERRORLESS|Exercise ASSERTION AND REASON|11 Videos

  • THE P-BLOCK ELEMENTS (BORON AND CARBON FAMILY)

    ERRORLESS|Exercise Assertion & Reason|10 Videos

Similar Questions

Explore conceptually related problems

Which of the following statements about Phaeophyceae is incorrect?

ERRORLESS-STRUCTURE OF ATOM-Assertion & Reason
  1. Which of the following statements about the electron is incorrect?

    Text Solution

    |

  2. Assertion (A) : The position of electron can be determined with the he...

    Text Solution

    |

  3. Assertion (A) : A spectral line will be seen for 2p(x)-2p(y) transitio...

    Text Solution

    |

  4. Assertion : The energy of an electron is mainly determined by principa...

    Text Solution

    |

  5. Assertion : Cathode rays are a stream of alpha-particles. Reason : T...

    Text Solution

    |

  6. The value of n for a line Balmer series of hydorgen spectrum having th...

    Text Solution

    |

  7. Assertion : Absorption spectrum consists of some bright lines separate...

    Text Solution

    |

  8. Cathode rays do not travel in straight lines. Cathode rays do not pe...

    Text Solution

    |

  9. Electrons revolving around the nucleus do not fall into the nucleus be...

    Text Solution

    |

  10. Assertion(A): Threshold frequency is a characteristic for a metal Re...

    Text Solution

    |

  11. (A) 3d(z^(2)) orbital is spherically symmetrical. (R) 3d(z^(2)) orbi...

    Text Solution

    |

  12. Assertion : Total number of orbitals associated with principal quantu...

    Text Solution

    |

  13. Assertion : Energy of the orbitals increases as 1slt2s=2plt3s=3plt3...

    Text Solution

    |

  14. Assertion : Splitting of the spectral lines in the presence of magnet...

    Text Solution

    |

  15. Assertion : Thomson’s atomic model is known as ‘raisin pudding’ model...

    Text Solution

    |

  16. Assertion : Atomic orbital in an atom is designated by n,l,m(l)andm(s...

    Text Solution

    |

  17. Assertion : The transition of electrons n3 to n2 in H atom will emit g...

    Text Solution

    |