Periodic Classification of Elements
The third ionization enthalpy is minimum for :
DoubtBuddy
Single Choice
The first ionisation potential of $$Na, Mg, Al$$ and $$Si$$ are in the order:
A$$Na < Mg < Al > Si$$
B$$Na < Mg > Al< Si$$
Correct Answer
C$$Na > Mg > Al> Si$$
D$$Mg > Na >Si> Al$$
Solution
Ionisation potential increases when we move from left to right in a period. But this increase in not regular. The members of second group have more ionisation potential then members of third group due to stable half filled s orbital.
$$\therefore$$ $$Na < Mg > Al < Si$$ is correct order of ionisation potential.
SIMILAR QUESTIONS
Periodic Classification of Elements
The first ionization energy (in kJ/mol) of Na, Mg, Al and Si respectively, are:
Periodic Classification of Elements
Which of the following represents the correct order of increasing first ionization enthalpy for $$Ca$$, $$Ba$$, $$S$$, $$Se$$ and $$Ar$$?
Periodic Classification of Elements
In which of the following options the order of arrangement does not goes with the variation of property indicated against it?
Periodic Classification of Elements
Compare the alkali metals and alkaline earth metals with respect to (i) ionisation enthalpy (ii) basicity of oxides and (iii) solubility of hydroxides.
Periodic Classification of Elements
In the periodic table, the maximum chemical reactivity is at the extreme left (alkali metals) and extreme right (halogens). Which properties of these two groups are responsible for this?
Periodic Classification of Elements
The element having very high ionization enthalpy but zero electron gain enthalpy is :
Periodic Classification of Elements
In which of the following transformation least energy is required?
Periodic Classification of Elements
Which of the following electronic configuration is associated with the biggest jump between the second and third ionization energies?
Periodic Classification of Elements
For which of the following reaction $$\Delta H^\circ$$ value is equal to the first ionization energy of Ca is?
Contact Details
- community@doubtbuddy.in
- M3M Cosmopolitian, Sector 66, Golf Course Extension Road, Gurgaon
- Policy Terms