Home
Class 9
CHEMISTRY
Na^(+) has completely filled K and L she...

`Na^(+)` has completely filled K and L shells explain ?

Text Solution

Verified by Experts

The atomic number of Sodium is 11, so neutral sodium atom hass 11 electrons and its electronic configuration is 2,8,1. But Na+ has 10 electrons out of 10. K- shell contains 2 and L- Shell, 8 electrons respectively. Thus `Na^(+)` has completely filled K and L shells.
Promotional Banner

Topper's Solved these Questions

  • STRUCTURE OF THE ATOM

    CPC CAMBRIDGE PUBLICATION|Exercise ADDITIONAL QUESTIONS (I. Choose the correct answer)|10 Videos

  • STRUCTURE OF THE ATOM

    CPC CAMBRIDGE PUBLICATION|Exercise ADDITIONAL QUESTIONS (II. Fill in the blanks)|5 Videos

  • STRUCTURE OF THE ATOM

    CPC CAMBRIDGE PUBLICATION|Exercise UNIT TEST (II. Answer the following)|3 Videos

  • MATTER IN OUR SURROUNDINGS

    CPC CAMBRIDGE PUBLICATION|Exercise UNIT TEST (Answer the following)|4 Videos

Similar Questions

Explore conceptually related problems

Cl-has completely filled K, & L shells. Explain

Peroxide ion (i) has five completely filled antibonding molecular orbitals (ii) is diamagnetic (iii) has bond order one (iv) is isoelectronic with neon. Which one of these is correct ?

i] An element X has both K and L shells completely filled with electrons. The element has atomic number 10. Identify the element X. ii] In which group of the periodic table this element is placed? iii) Write its electronic configuration. What is its valency?.

Copper atom has completely filled d-orbitals. How can it be considered as a d-block metal ?

Which elements has two shells, both of which are completely filled with electrons?

Which element has: a] two shells, each completely filled with electrons? b] the electron configuration 2, 8, 2? c] three shells, with four electrons in the valence shell? d] two shells, with three electrons in its valence shell? e] twice as many electrons in its second shell as in its first shell?

CPC CAMBRIDGE PUBLICATION-STRUCTURE OF THE ATOM -EXERCISE
  1. Compare the properties of electrons, protons and neutrons.

    Text Solution

    |

  2. What is the limitation of Thomson's model of atom.

    Text Solution

    |

  3. What are the limitations of Rutherford's model?

    Text Solution

    |

  4. Summarize the Bohr's Model of an atom.

    Text Solution

    |

  5. Compare all the proposed model of an atom given in this chapter.

    Text Solution

    |

  6. Summarize the rule for writing of distribution of electrons in various...

    Text Solution

    |

  7. Define valency by taking examples of silicon and oxygen .

    Text Solution

    |

  8. Explain with examples (a) Atomic number Mass number Isotopes

    Text Solution

    |

  9. Na^(+) has completely filled K and L shells explain ?

    Text Solution

    |

  10. If Bromine atom is available in the form of say, two isotopes .(35)^(7...

    Text Solution

    |

  11. The average atomic mass of a sample of an element X is 16.2 u. What ar...

    Text Solution

    |

  12. If Z = 3, what would be the valency of the element ? Also, name the el...

    Text Solution

    |

  13. Composition of the nuclei of two atomic species X and Y are given as u...

    Text Solution

    |

  14. For the following statements, write True (T) or False (F). If the stat...

    Text Solution

    |

  15. Rutherford's alpha - particle scattering experiment was responsible fo...

    Text Solution

    |

  16. Isotopes of an element have

    Text Solution

    |

  17. Number of valence electrons in ion are

    Text Solution

    |

  18. Which one of the following is a correct electronic configuration of so...

    Text Solution

    |

  19. Complete the following table

    Text Solution

    |