Home
Class 10
CHEMISTRY
Nuclear charge increase both in a period...

Nuclear charge increase both in a period and group. But, effective nuclear charge increase in a period and decreases in a group. Identify the correct reverse trend.

A

Role of inter electronic repulsions

B

Reverse trend of metallic character

C

Role of screening effect

D

Reverse trend of atomic size

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS THE PERIODIC TABLE

    BEYOND PUBLICATION|Exercise EXERCISE|179 Videos

  • CHEMICAL EQUATIONS

    BEYOND PUBLICATION|Exercise EXERCISE|73 Videos

  • PRINCIPLES OF METALLURGY

    BEYOND PUBLICATION|Exercise EXERCISE|153 Videos

Similar Questions

Explore conceptually related problems

In a group from top to bottom effective nuclear charge

In a period from left to right A) nuclear charge increases B) effective nuclear charge increases C) atomic size decreases D) Ionisation potential increases Correct among the above are

Screening effect is the effect produced by intervening electron between nucleus and valence electrons. They shield the nucleus from valence electron and effective nuclear charge decreases if there is less shielding effect, the effective nuclear charge decreases. Balance electrons are attracted by nucleus and repelled by other electrons. Net attractive force on electron under consideration =Z- sigma = (Nuclear charge screening effect) which is Slater's formula for screening constant. If one electron is present in outermost orbit, there will be no screening in that orbital. Each electron contributes 0.35 (total electrons minus 1) present in outermost shell. In penultimate energy level, electrons contribute 0.85. A contribution of 1.0 is from remaining electrons (present in last but one energy level). The effective nuclear charge for 4s electrons of Zn will be

As the atomic number increases atomic size increases in a group, while it decreases in a period. Give reasons.

As atomic number increases, atomic size increases in a group and decreases along a period . Give reasons for this behaviour.

As atomic number increases, atomic size increases in a group and decreases along a period . Give reasons for this behaviour.

(A) Mn atom loses ns electrons first during ionization as compared to (n-l)d electrons . (R) The effective nuclear charge experienced by (n-l)d electrons is greater than that by ns electrons.

A property which progressively increases down a group in the periodic table is :

BEYOND PUBLICATION-CLASSIFICATION OF ELEMENTS THE PERIODIC TABLE-EXERCISE
  1. Which of the following elements gives the correct increasing order of ...

    Text Solution

    |

  2. Which of the following reasons corresponds to decrease in IP value fro...

    Text Solution

    |

  3. Nuclear charge increase both in a period and group. But, effective nuc...

    Text Solution

    |

  4. Nitrogen (Z=7) is the element of group V of the periodic table. Which...

    Text Solution

    |

  5. Which of the following group elements are called alkali metal family ?

    Text Solution

    |

  6. An element M, is in the 13th group, the formula of its chloride is

    Text Solution

    |

  7. Which of the following sets does not belong to a group ?

    Text Solution

    |

  8. Which is the wrong sequence of the elements in a group ?

    Text Solution

    |

  9. Which of the following sets of elements belongs to alkali metals ?

    Text Solution

    |

  10. The outermost main shell of an element is 'M' shell. This element belo...

    Text Solution

    |

  11. Which of the following is an element in 3^rd period II group

    Text Solution

    |

  12. Actinides belongs to period.

    Text Solution

    |

  13. The electronegativity of the following elements increase in the order

    Text Solution

    |

  14. The incompletely filled period is

    Text Solution

    |

  15. The element for which the electronic configuration does not justify it...

    Text Solution

    |

  16. Ionization energy increases with the Increase of

    Text Solution

    |

  17. Newlands' periodic table restricted to elements.

    Text Solution

    |

  18. Electronic configuration from ns^2 np^1 to np^2 np^6 are called

    Text Solution

    |

  19. s and p-block elements are called

    Text Solution

    |

  20. Valency of chlorine is

    Text Solution

    |