Home
Class 12
CHEMISTRY
According to Slater's Rule effective nuc...

According to Slater's Rule effective nuclear charge of Na is x and of K is y respectively. Calculate value of x - y = ?

Text Solution

Verified by Experts

The correct Answer is:
0
`._(11)Nararr1s^(2)2s^(2)2p^(6)3s^(1)`
`Z_("eff")=11-(0.85xx8+1xx2)`
(x)=2.2
Same value for `k " "Z_("eff")=2.2=(y)`
Value of (x-y) = 0
Promotional Banner

Topper's Solved these Questions

  • REVIEW TEST

    VIBRANT|Exercise PART - II : CHEMISTRY|19 Videos

  • TEST PAPERS

    VIBRANT|Exercise PART - III : CHEMISTRY|61 Videos

Similar Questions

Explore conceptually related problems

The increasing order of effective nuclear charge in Na, AI, Mg and Si atoms

The order of Z_(eff) (effective nuclear charge) of N^(+), N, N^(-) are respectively :

J.C. Slater proposed an empirical constant that represents the cumulative extent to which the other electrons of an atom shield (or screen) any particular electron from the nuclear charge. Thus, slater's screening contant sigma is as : Z^(**)=Z-sigma Here, Z is the atomic number of the atom, and hence is equal to the actual number of protons in the atom. the parameter Z^(**) is the effective nuclear charge, which according to is smaller than Z, since the electron in question is screened (shielded) from Z by an amount sigma . Conversely, an electron that is well shielded from the nuclear charge Z experiences a small effective nuclear charge Z^(**) . The value of sigma for any one electron in a given electron configuration (i.e., in the presence of the other electrons of the atom in question) is calculated using a set of empirical rules developed by slater. according to these rules, the value of sigma for the electron in question is the cumulative total provided by the various other electrons of the atom. Q. According to Slater's rule, order of effective nuclear charge (Z^(**)) for last electron in case of Li, Na and K.

If (x-y,x+y)=(2,8), then the values of x and y are respectively.

If cos x = k cos (x - 2y), then the value of tan (x -y).tan y is

J.C. Slater proposed an empirical constant that represents the cumulative extent to which the other electrons of an atom shield (or screen) any particular electron from the nuclear charge. Thus, slater's screening contant sigma is as : Z^(**)=Z-sigma Here, Z is the atomic number of the atom, and hence is equal to the actual number of protons in the atom. the parameter Z^(**) is the effective nuclear charge, which according to is smaller than Z, since the electron in question is screened (shielded) from Z by an amount sigma . Conversely, an electron that is well shielded from the nuclear charge Z experiences a small effective nuclear charge Z^(**) . The value of sigma for any one electron in a given electron configuration (i.e., in the presence of the other electrons of the atom in question) is calculated using a set of empirical rules developed by slater. according to these rules, the value of sigma for the electron in question is the cumulative total provided by the various other electrons of the atom. Q. Which of the following statement is correct?

VIBRANT-REVIEW TEST-PART - III : CHEMISTRY
  1. The gaseous reaction 2A(g) + nB(g) iff mC(g) is represented by foll...

    Text Solution

    |

  2. According to Slater's Rule effective nuclear charge of Na is x and of ...

    Text Solution

    |

  3. H^(+) ions are in excited state from where maximum 6 types of photons ...

    Text Solution

    |

  4. x = number of structure of molecular formula C(4)H(10)O which give fum...

    Text Solution

    |

  5. Determine the value of ((x+y^(2)))/(2) for Cr^(3+) ion Where x = nu...

    Text Solution

    |

  6. An alpha-particle having kinetic energy x MeV falls on a Cu-foil. The ...

    Text Solution

    |

  7. Identify the number of carbon atoms where oplus charge is delocalized.

    Text Solution

    |

  8. Electrons in a sample of H-atoms make transition from state n = y to s...

    Text Solution

    |

  9. Choose the incorrect statement(s) :

    Text Solution

    |

  10. In which of the following aromatic product is obtained

    Text Solution

    |

  11. I^(-) or the reaction I(2) (g) iff 2I(g). K(c )=6.25xx10^(-6) at 90...

    Text Solution

    |

  12. Phenol is less acidic than

    Text Solution

    |

  13. Give the correct order of initials T(True) for following statements :

    Text Solution

    |

  14. For similar nature of below graph where n le 5, select correct stateme...

    Text Solution

    |

  15. The electronic configuration of four element's are : (I) [Kr] 5s^(1...

    Text Solution

    |

  16. The rate consant for the forward reation A(g) iff 2B(g) is 1.5 xx 1...

    Text Solution

    |

  17. The value of four quantum number for the last e^(-) of atom of element...

    Text Solution

    |

  18. The value of four quantum number for the last e^(-) of atom of element...

    Text Solution

    |

  19. Acid are those compounds which give proton and base are those compound...

    Text Solution

    |

  20. Acid are those compounds which give proton and base are those compound...

    Text Solution

    |