Home
Class 11
CHEMISTRY
The atomic radius decreases in a period ...

The atomic radius decreases in a period due to

A

Increase in nuclear attraction

B

Decrease in nuclear attraction

C

Increase in number of electrons

D

Decrease in number of electrons

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PERIODIC TABLE

    AAKASH SERIES|Exercise EXERCISE ON PASSAGE|12 Videos

  • PERIODIC TABLE

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE -2B|85 Videos

  • PERIODIC PROPERTIES

    AAKASH SERIES|Exercise LEVEL-II (TYPE -II) (PRACTICE SHEET -3 (SUBJECTIVE/ ANALYTICAL TYPE QUESTIONS ))|8 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND IUPAC NOMENCLATURE

    AAKASH SERIES|Exercise ADDITIONAL PRCATICE EXERCISE (LEVEL - II (LECTURE SHEET (ADVANCED) INTEGER TYPE QUESTIONS)|2 Videos

Similar Questions

Explore conceptually related problems

It is not possible to measure the atomic radius precisely since the electron cloud surrounding the atom doesnot have sharp boundary. One practical approach to estimate the size of an atom of a non-metallic element is to measure the distance between two atoms when they are bound together by a single bond in a covalent molecule and then dividing by two. For metals we define the term "metallic radius" which is taken as half the internuclear distance separating the metal cores in the metallic crystal. The vander Waal's radius represents the overall size of the atoms which includes its valence shell in a nonbonded situation. It is the half of the distance between two similar atoms in separate molecules in a solid. The atomic radius decreases across a period and increases down the group. Same trends are observed in case of ionic radius. Ionic radius of the species having same number of electrons depends on the number of protons in their nuclei. Atomic radii of the noble gases are larger than the precedent elements of the same periods because

It is not possible to measure the atomic radius precisely since the electron cloud surrounding the atom doesnot have sharp boundary. One practical approach to estimate the size of an atom of a non-metallic element is to measure the distance between two atoms when they are bound together by a single bond in a covalent molecule and then dividing by two. For metals we define the term "metallic radius" which is taken as half the internuclear distance separating the metal cores in the metallic crystal. The vander Waal's radius represents the overall size of the atoms which includes its valence shell in a nonbonded situation. It is the half of the distance between two similar atoms in separate molecules in a solid. The atomic radius decreases across a period and increases down the group. Same trends are observed in case of ionic radius. Ionic radius of the species having same number of electrons depends on the number of protons in their nuclei. The size of iso electronic species -F^(-) , Na^(+) and Mg^(2+) is effected by

It is not possible to measure the atomic radius precisely since the electron cloud surrounding the atom doesnot have sharp boundary. One practical approach to estimate the size of an atom of a non-metallic element is to measure the distance between two atoms when they are bound together by a single bond in a covalent molecule and then dividing by two. For metals we define the term "metallic radius" which is taken as half the internuclear distance separating the metal cores in the metallic crystal. The vander Waal's radius represents the overall size of the atoms which includes its valence shell in a nonbonded situation. It is the half of the distance between two similar atoms in separate molecules in a solid. The atomic radius decreases across a period and increases down the group. Same trends are observed in case of ionic radius. Ionic radius of the species having same number of electrons depends on the number of protons in their nuclei. The correct order of radii is

It is not possible to measure the atomic radius precisely since the electron cloud surrounding the atom doesnot have sharp boundary. One practical approach to estimate the size of an atom of a non-metallic element is to measure the distance between two atoms when they are bound together by a single bond in a covalent molecule and then dividing by two. For metals we define the term "metallic radius" which is taken as half the internuclear distance separating the metal cores in the metallic crystal. The vander Waal's radius represents the overall size of the atoms which includes its valence shell in a nonbonded situation. It is the half of the distance between two similar atoms in separate molecules in a solid. The atomic radius decreases across a period and increases down the group. Same trends are observed in case of ionic radius. Ionic radius of the species having same number of electrons depends on the number of protons in their nuclei. Which of the following statement is correct?

It is not possible to measure the atomic radius precisely since the electron cloud surrounding the atom doesnot have sharp boundary. One practical approach to estimate the size of an atom of a non-metallic element is to measure the distance between two atoms when they are bound together by a single bond in a covalent molecule and then dividing by two. For metals we define the term "metallic radius" which is taken as half the internuclear distance separating the metal cores in the metallic crystal. The vander Waal's radius represents the overall size of the atoms which includes its valence shell in a nonbonded situation. It is the half of the distance between two similar atoms in separate molecules in a solid. The atomic radius decreases across a period and increases down the group. Same trends are observed in case of ionic radius. Ionic radius of the species having same number of electrons depends on the number of protons in their nuclei. Which one among the following sets of ions represents the collection of isoelectronic species?

How does the atomic radius vary in a period of elements?

The atomic radii of transition elements decreases slowly as the atomic number increases in a period. Account for it

Define atomic radius.

How does atomic radius vary in a period and in a group? How do you explain the variation?

AAKASH SERIES-PERIODIC TABLE-OBJECTIVE EXERCISE -3
  1. The IUPAC name of ""(104)Rf is

    Text Solution

    |

  2. The IUPAC name of ""(107)Bh is

    Text Solution

    |

  3. Screening constant depends upon A) Number of inner shells B) Numbe...

    Text Solution

    |

  4. Screening constant of Be is 2.05 and that of B is

    Text Solution

    |

  5. Write any two properties which are decreased from top to bott...

    Text Solution

    |

  6. Screening by inner electrons will be more effective in

    Text Solution

    |

  7. Correct order of first ionisation potentials

    Text Solution

    |

  8. In a period from left to right A) nuclear charge increases B) eff...

    Text Solution

    |

  9. Relation between oxidation numbers and electronegativity is given by

    Text Solution

    |

  10. Screening effect influences A) atomic radius B) Ionisation enthal...

    Text Solution

    |

  11. {0} is a set contains the element……..

    Text Solution

    |

  12. Number of unpaired electrons in Gd(Z =64) and the net electrons spin a...

    Text Solution

    |

  13. For the process X((g)) + e^(-) rarr X((g))^(-), Delta H =x and X(g)^...

    Text Solution

    |

  14. Some statements are given regarding nature of oxides (i) In second ...

    Text Solution

    |

  15. When an electron adds on F atom, It becomes

    Text Solution

    |

  16. On going down a main subgroup in the periodic table (example Li to Cs ...

    Text Solution

    |

  17. Identify the correct statement

    Text Solution

    |

  18. Identify the correct order in which the ionic radius of the following ...

    Text Solution

    |

  19. The atomic radius decreases in a period due to

    Text Solution

    |

  20. Among the following, the number of elements showing only one non-zero ...

    Text Solution

    |