Home
Class 12
PHYSICS
The sodium nucleus ""11^23 Na contains....

The sodium nucleus `""_11^23 Na` contains.

A

`11` electrons

B

`12` protons

C

`23` protons

D

`12` neutrons

Text Solution

Verified by Experts

The correct Answer is:
D
(d) Number of neutrons `= A - Z = 23 - 11 = 12`.
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

._(11)^(22)Na contains

Nucleus contains

The number of proton, neutrons and electrons in the nucleus of ._(11)Na^(23) are respectively

200 mL of a solution contains 5.85 k g dissolved sodium chloride . The concentration of the solution wil be _______. (Na = 23 , Cl= 35.5)

The nucleus .^(23)Ne deacays by beta -emission into the nucleus .^(23)Na . Write down the beta -decay equation and determine the maximum kinetic energy of the electrons emitted. Given, (m(._(11)^(23)Ne) =22.994466 am u and m (._(11)^(23)Na =22.989770 am u . Ignore the mass of antineuttino (bar(v)) .

Deduce the expression, N=N_(0)^(-lambdat) for the law of radioactive decay. (b) Is the nucleus formed in the decay of the nucleus ._(11)^(12)Na , an isotope or isobar?

Determine the number of electrons, proton and neutrons in the nucleus in ""_(11)Na^(22) .

A2Z-NUCLEAR PHYSICS-Section D - Chapter End Test
  1. The sodium nucleus ""11^23 Na contains.

    Text Solution

    |

  2. If N(0) is the original mass of the substance of half - life period t(...

    Text Solution

    |

  3. A radioactive sample at any instant has its disintegration rate 5000 d...

    Text Solution

    |

  4. Which of the following atoms has the lowest ionization potential ?

    Text Solution

    |

  5. In the nuclear fusion reaction (1)^(2)H + (1)^(3)H rarr (2)^(4)He + ...

    Text Solution

    |

  6. The binding energy per nucleon of deuterium and helium atom is 1.1 MeV...

    Text Solution

    |

  7. If radius of the (13)^(27) Al necleus is estimated to be 3.6 fermi the...

    Text Solution

    |

  8. Starting with a sample of pure .^66 Cu, 7//8 of it decays into Zn in 1...

    Text Solution

    |

  9. Some radioactive nucleus may emit.

    Text Solution

    |

  10. Which of the following is a correct statement?

    Text Solution

    |

  11. .^22 Ne nucleus after absorbing energy decays into two alpha-particles...

    Text Solution

    |

  12. The half - life of I ^ (131) is 8 days. Given a sample of I^(131) at ...

    Text Solution

    |

  13. The binding energy per nucleon of O^16 is 7.97 MeV and that of O^17 is...

    Text Solution

    |

  14. A star initially has 10^40 deuterons. It produces energy via the proce...

    Text Solution

    |

  15. A nucleus with mass number 220 initially at rest emits an alpha-partic...

    Text Solution

    |

  16. The half life of radioactive Radon is 3.8 days . The time at the end o...

    Text Solution

    |

  17. A freshly prepared radioactive source of half-life 2 h emits radiation...

    Text Solution

    |

  18. A radioactive material decays by simulataneous emission of two particl...

    Text Solution

    |

  19. The half-life period of a radioactive element x is same as the mean li...

    Text Solution

    |

  20. Two radioactive X(1) and X(2) have decay constants 10 lambda and lamb...

    Text Solution

    |

  21. After 280 days, the activity of a radioactive sample is 6000 dps. The ...

    Text Solution

    |