Home
Class 11
CHEMISTRY
In 4s and 3d which have the lowest sum o...

In 4s and 3d which have the lowest sum of ( n + l ) value .

Text Solution

Verified by Experts

Alkali metals mainly caesium and potassium show photoelectric effect.
Promotional Banner

Topper's Solved these Questions

  • THE S-BLOCK ELEMENTS

    OMEGA PUBLICATION|Exercise General characteristics of the compound of the alkali metals|2 Videos

  • THE S-BLOCK ELEMENTS

    OMEGA PUBLICATION|Exercise Anomalous properties of lithium|4 Videos

  • THE P-BLOCK ELEMENTS

    OMEGA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (MCQs)|28 Videos

  • THERMODYNAMICS

    OMEGA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (MCQ)|25 Videos

Similar Questions

Explore conceptually related problems

What is the sum of (n + l) value of 4d.

Find the sum S_n of the cubes of the first n terms of an A.P. and show that the sum of first n terms of the A.P. is a factor of S_n .

For n = 4 , which one of the following values of l is not possible?

Why do the transition elements have higher enthalpies of atomisation? In 3d series (Sc to Zn), which element has the lowest enthalpy of atomisation and why?

Explain giving reaons, which of the sets of quantum number are not possible ? n =3 " " l=3 " " m _(l) =0 " " m _(s) = +1//2

Explain giving reasons, which of the sets of quantum number are not possible ? n =3 " " l=0 " " m _(l) =0 " " m _(s) = +1//2

The total number of five-digit numbers of different digits in which the digit in the middle is the largest is a. sum_(n=4)^9 ^n P_4 b. 33(3!) c. 30(3!) d. sum_(n=3)^8 n^n P_3

If for a sequence {a_(n)},S_(n)=2n^(2)+9n , where S_(n) is the sum of n terms, the value of a_(20) is

OMEGA PUBLICATION-THE S-BLOCK ELEMENTS-MULTIPLE CHOICE QUESTIONS MCQ.s
  1. In 4s and 3d which have the lowest sum of ( n + l ) value .

    Text Solution

    |

  2. Which of the following represents electronic configuration of alkali m...

    Text Solution

    |

  3. What is kharasch effect?

    Text Solution

    |

  4. In general, the melting and boiling point of transition metals

    Text Solution

    |

  5. The element of group I are called alkali metals because

    Text Solution

    |

  6. which reaction is used for the detection of unsaturation in an organic...

    Text Solution

    |

  7. What is allylic halogenation?

    Text Solution

    |

  8. In the reaction M+O(2) to MO(2) (superoxide), the metal M is

    Text Solution

    |

  9. A solution of sodium metal in liquid ammonia acts as a strong reducing...

    Text Solution

    |

  10. The strongest reducing agent among all the halide ions is ...............

    Text Solution

    |

  11. Do you find that all living beings need the same kind of food?

    Text Solution

    |

  12. What is the sum of (n + l) value of 4d.

    Text Solution

    |

  13. What is the electronic configuration of argon.

    Text Solution

    |

  14. What is the electronic configuration of chlorine atom.

    Text Solution

    |

  15. Alkali metals give colour to Bunsen flame due to

    Text Solution

    |

  16. Lithium shows diagonal relationship with

    Text Solution

    |

  17. IUPAC name of element having atomic number 108 is .......................

    Text Solution

    |

  18. Castner-Kellner cell is used for the manufacture of

    Text Solution

    |

  19. Alkali metals are good reducing agents because they easily

    Text Solution

    |

  20. Which one of the following alkali metals is used in photoelectric cell...

    Text Solution

    |

  21. Write name of element with the following electronic configuration : 1...

    Text Solution

    |