Classification of Elements and Periodicity

Consider the following ionization enthalpies of two elements 'A' and 'B'.

Element	1$^{\text{st}}$ (kJ/mol)	2$^{\text{nd}}$ (kJ/mol)	3$^{\text{rd}}$ (kJ/mol)
A	899	1757	14847
B	737	1450	7731

Which of the following statements is correct ?

The electronic configuration with the highest ionization enthalpy is :

The increasing order of atomic radii of the following Group 13 elements is

Which of the following atoms has the highest first ionization energy ?

The following statements concern elements in the periodic table. Which of the following is true ?

The ionic radii (in Å) of $\ce{N^3-}$, $\ce{O^2-}$ and $\ce{F-}$ are respectively :

In the long form of the periodic table, the valence shell electronic configuration of $5s^25p^4$ corresponds to the element present in :

Which of the following series correctly represents relations between the elements from X to Y ?

X → Y

Similarity in chemical properties of the atoms of elements in a group of the Periodic table is most closely related to :

Which of the following arrangements represents the increasing order (smallest to largest) of ionic radii of the given species $\ce{O^2-}$, $\ce{S^2-}$, $\ce{N^3-}$, $\ce{P^3-}$ ?

Ionization energy of gaseous Na atoms is 495.5 kJmol$^{-1}$. The lowest possible frequency of light that ionizes a sodium atom is ($h=6.626\times10^{-34}$ Js, $N_A=6.022\times10^{23}$ mol$^{-1}$)

Which one of the following has largest ionic radius ?

The periodic table consists of 18 groups. An isotope of copper, on bombardment with protons, undergoes a nuclear reaction yielding element X as shown below. To which group, element X belongs in the periodic table?
$$^{63}_{29}\mathrm{Cu}+{}^1_1\mathrm H\to6\,{}^1_0\mathrm n+\alpha+2\,{}^1_1\mathrm H+\mathbf X$$

Among the following, the number of elements showing only one non-zero oxidation state is

O, Cl, F, N, P, Sn, Tl, Na, Ti