Home
Class 12
CHEMISTRY
The nucleus of helium contains...

The nucleus of helium contains

A

three protons and one neutron

B

two proton and two neutron

C

four protons only

D

one proton and three neutrons

Text Solution

Verified by Experts

The correct Answer is:
B
`._2He^4` (atomic no. =2 , mass no. = 4 )
Promotional Banner

Topper's Solved these Questions

  • P-BLOCK ELEMENTS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|50 Videos

  • ORGANIC COMPOUNDS CONTAINGING NITROGEN

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|40 Videos

  • POLYMERS

    MARVEL PUBLICATION|Exercise TEST YOUR GRAP|35 Videos

Similar Questions

Explore conceptually related problems

The nucleus of tritium contains

The nucleus of helium atom contains two protons that are separated by distance 3.0xx10^(-15)m . The magnitude of the electrostatic force that each proton exerts on the other is

J.J. Thomson proposed that the nucleus of an atom contains only nucleus.

The mass defect for the nucleus of helium is 0.0303 a.m.u. What is the binding energy per nucleon for helium in MeV ?

Nucleus of an atom contains

The magnitude of charge on the electron is 4.8 xx 10^(-10) e.s.u. What is the charge on the nucleus of a helium atom?

It is required to double the pressure of helium gas, contained in a steel cylinder, by heating. If the initial temperature of helium be 27^(@)C the temperature up to which it ought to be heated is –

A: The nucleus of plasma cell has cart wheel appearance. R: Nucleus contains peripheral clumps of heterochromatin.

MARVEL PUBLICATION-P-BLOCK ELEMENTS -TEST YOUR GRASP
  1. The nucleus of helium contains

    Text Solution

    |

  2. The element which forms oxides in all oxidation states +1 to +5 is.

    Text Solution

    |

  3. With Nesslers reagent, ammonia gives brown precipitate due to formatio...

    Text Solution

    |

  4. Oxide of nitrogen used as an oxidiser for rocket fuels in missiles and...

    Text Solution

    |

  5. Oxide of nitrogen which acts as oxidising as well as reducing agent is

    Text Solution

    |

  6. A group 16 element exists in monoatomic state in the metallic lattice....

    Text Solution

    |

  7. What is the hybridization of S in SF6 ?

    Text Solution

    |

  8. When dipped in conc. HNO3, metals like iron, chromium, nickel, alumini...

    Text Solution

    |

  9. Laughing gas has chemical formula

    Text Solution

    |

  10. A solution of colourless salt H on boiling with axcess NaOH produces a...

    Text Solution

    |

  11. When chloride is passed over dry slaked lime at room temperature the m...

    Text Solution

    |

  12. When I(2) is dissolved in C Cl(4), the colour that results is

    Text Solution

    |

  13. Fluorine does not show positive oxidation states due to the absence of

    Text Solution

    |

  14. The hybridisation of xenon in XeF2 is

    Text Solution

    |

  15. An inert gas atoms

    Text Solution

    |

  16. Argon is used in arc welding because of its

    Text Solution

    |

  17. Nitrogen shows oxidation state +5, but it does not form pentahalide as

    Text Solution

    |

  18. PCl3 fumes in moisture because

    Text Solution

    |

  19. Which of the following statement is correct?

    Text Solution

    |

  20. S-S bond is present in

    Text Solution

    |

  21. The chemical formula of baryte, the salt of sulphur is

    Text Solution

    |