Advertisements
Advertisements
Question
Answer the following.
Why the second ionization enthalpy is greater than the first ionization enthalpy?
Solution
The second ionization enthalpy (ΔiH2) is greater than the first ionization enthalpy (ΔiH1) as it involves the removal of an electron from the positively charged species.
APPEARS IN
RELATED QUESTIONS
Explain the following.
The ionic radii of FΘ and Na⊕ are 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.
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+
Answer the following question.
Select the smaller ion form the following pair:
N3–, F–
With the help of a diagram answer the questions are given below:
- Which atom should have smaller ionization energy, oxygen, or sulphur?
- The lithium forms +1 ions while beryllium forms +2 ions?
Define ionic radius
What are the valence electrons?
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.
Fluorine has less electron affinity than chlorine.
Give reason.
Noble gases possess relatively large atomic size.
