JEE Main · 2019 · 12 Jan 2019 · Shift 1 · Classification of Elements and Periodicity

Which of the following represents the correct trend for the mentioned property?
A. $\mathrm{F}>\mathrm{P}>\mathrm{S}>\mathrm{B}$ - First Ionization Energy
B. $\mathrm{Cl}>\mathrm{F}>\mathrm{S}>\mathrm{P}$ - Electron Affinity
C. …

Given below are two statements:

Statement-I: The correct order in terms of atomic/ionic radii is $\mathrm{Al}>\mathrm{Mg}>{\mathrm{Mg}}^{2+}>{\mathrm{Al}}^{3+}$.

Statement-II: The correct order in terms of the magnitude of electron gain enthalpy is …

Given below are two statements :

Statement-I : The first ionization enthalpy of Cr is lower than that of Mn.
Statement-II : The second and third ionization enthalpies of Cr are higher than those of Mn .

In the light of the above statements, choose the correct answer from the op …

Given below are two statements :

Statement-I : $\mathrm{C}<\mathrm{O}<\mathrm{N}<\mathrm{F}$ is the correct order in terms of first ionization enthalpy values.

Statement-II : $\mathrm{S}>\mathrm{Se}>\mathrm{Te}>\mathrm{Po}>\mathrm{O}$ is the correct order in terms of the ma …

The correct trend in the first ionization enthalpies of the elements in the $3^{\text{rd}}$ period of periodic table is:

The correct statements from the following are :
(A) Ionic radii of trivalent cations of group 13 elements decreases down the group.
(B) Electronegativity of group 13 elements decreases down the group.
(C) Among the group 13 elements, Boron has highest first ionisation enthalpy.
( …