English

Define ionic radius - Chemistry

Advertisements
Advertisements

Question

Define ionic radius

Definition

Solution

Ionic radius is defined as the distance of the valence shell of electrons from the centre of the nucleus in an ion.

shaalaa.com
Periodic Trends in Elemental Properties
  Is there an error in this question or solution?
Chapter 7: Modern Periodic Table - Exercises [Page 109]

APPEARS IN

Balbharati Chemistry [English] 11 Standard
Chapter 7 Modern Periodic Table
Exercises | Q 5. (E)(a) | Page 109

RELATED QUESTIONS

Explain the following.

The atomic radii of Cl, I, and Br are 99, 133, and 114 pm, respectively.


Explain the following.

The ionic radii of FΘ and Naare 133 and 98 pm, respectively.


Explain the following.

Cu forms coloured salts while Zn forms colourless salts.


Answer the following.

Ionization enthalpy of Li is 520 kJ mol-1 while that of F is 1681 kJ mol-1. Explain.


Answer the following.

Explain the screening effect with a suitable example.


Answer the following.

Why the second ionization enthalpy is greater than the first ionization enthalpy?


Answer the following.

Why the elements belonging to the same group do have similar chemical properties?


Choose the correct option.

Consider the elements B, Al, Mg, and K predict the correct order of metallic character:


Choose the correct option.

The lanthanides are placed in the periodic table at


Choose the correct option.

If the valence shell electronic configuration is ns2np5, the element will belong to


Choose the correct option.

Which of the following pairs is isoelectronic?


Answer the following question.

For the following pair, indicate which of the two species is of large size:

Fe2+ or Fe3+


Answer the following question.

Select the smaller ion form the following pair:

K+, Li+


With the help of a diagram answer the questions are given below:

  1. Which atom should have smaller ionization energy, oxygen, or sulphur?
  2. The lithium forms +1 ions while beryllium forms +2 ions?

Define electronegativity


What are the valence electrons?


Define ionization enthalpy.


Name the factors on which ionization enthalpy depends?


How does ionization enthalpy vary down the group and across a period?


Give reason.

Alkali metals have low ionization enthalpies.


Give reason.

Inert gases have exceptionally high ionization enthalpies.


Give reason.

Fluorine has less electron affinity than chlorine.


Give reason.

Noble gases possess relatively large atomic size.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×