Periodicity in Properties

The correct order of Pauling electronegativity is:

Which of following represents the correct order of $\mathrm{EA}$?

Which systematic diagram is correct about the ionisation energy of coinage metals?

Successive ionisation energies of an element $\text{'}\mathrm{X}\text{'}$ are given below (in $\mathrm{k} \mathrm{cal}$): 

Electronic configuration of the element $\text{'}\mathrm{X}\text{'}$ is:

The${\mathrm{IP}}_1, {\mathrm{IP}}_2, {\mathrm{IP}}_3, {\mathrm{IP}}_4$ and ${\mathrm{IP}}_5$ of an element are $7.1, 14.3, 34.5, 46.8, 162.2 \mathrm{eV}$, respectively. The element is likely to be:

What is the order of the basic character of transition metal monoxides?

In water, which of the following gives an acidic solution?

Identify the following statements is true and false.

${\mathrm{S}}_1$: Among ${\mathrm{Li}}^{-}, {\mathrm{Be}}^{-}, {\mathrm{B}}^{-}$ and ${\mathrm{C}}^{-},$ ${\mathrm{Be}}^{-}$ is the least stable ion.

${\mathrm{S}}_2$: If the same element is forming oxides in different oxidation states, then the oxide in which the element shows the highest oxidation state will be highly acidic in nature.

${\mathrm{S}}_3$: Amphiprotic oxide is one which can accept and release ${\mathrm{H}}^{+}$ ions.

${\mathrm{S}}_4$: In alkaline-earth metals, electronegativity values decrease down the group.

Choose the correct statements for element ${}_9{}^{19}\mathrm{M}.$

a. Formation of ${\mathrm{M}}^{-}$ is an endothermic process.

b. It's anion is isoelectronic with neon.

c. It has the smallest size in its period.

d. It has the highest electron gain enthalpy in its group.

First ionization potential of lithium is $5.14 \mathrm{eV}$ and the electron affinity of chlorine is $3.16 \mathrm{eV}.$ The energy change for the reaction $\mathrm{Li} \left(\mathrm{g}\right)+\mathrm{Cl} \left(\mathrm{g}\right)\to {\mathrm{Li}}^{+} \left(\mathrm{g}\right)+{\mathrm{Cl}}^{-} \left(\mathrm{g}\right)$ is:

Which of the following is the correct decreasing order of ionization energy?

$\mathrm{M} \left(\mathrm{g}\right)\to {\mathrm{M}}^{+} \left(\mathrm{g}\right)+{\mathrm{e}}^{-}; \mathrm{\Delta H}=100 \mathrm{eV}$

$\mathrm{M} \left(\mathrm{g}\right)\to {\mathrm{M}}^{2+} \left(\mathrm{g}\right)+2{\mathrm{e}}^{-}; \mathrm{\Delta H}=350 \mathrm{eV}$

Which of the following is the correct statement with respect to the above reactions?

The correct order of radii of the following ions is:

The screening effect of inner electrons will lead to 

a. Decrease in the ionization potential.

b. Increase in the ionization potential.

c. Decrease in electron affinity.

d. Increase in electron affinity.

Which of the following is the correct order of gradually decreasing the basic nature of oxides?

Which of the following statement(s) is/are true?

The elements which have no tendency to accept the incoming electron is?

Which of the following statements is wrong?

Which of the following statements are true and false?

${\mathrm{S}}_1: {\mathrm{IE}}_1$ of $\mathrm{Sr}>\mathrm{Rb}$ but ${\mathrm{IE}}_2$ for $\mathrm{Rb}>\mathrm{Sr}$.

${\mathrm{S}}_2:$ The ionic radii of ${\mathrm{Li}}^{+}, {\mathrm{K}}^{+}, {\mathrm{Mg}}^{2+}$and ${\mathrm{Al}}^{3+}$ in $\mathrm{Å}$ are $0.76, 1.38, 0.720$ and $0.535,$ respectively.

${\mathrm{S}}_3:$ The negative value of electron gain enthalpy of $\mathrm{Cl}>\mathrm{F}$ because there is weak electron-electron repulsion in a bigger $3\mathrm{p}$ subshell of $\mathrm{Cl}$  as compared to compact $2\mathrm{p}$ subshell of $\mathrm{F}$.

${\mathrm{S}}_4:$ The second ionization energy of copper is less than potassium.

Identify the following statements is true and false-

${\mathrm{S}}_1:$ Long-form of the periodic table helps to predict the relative ionic character of the bond between any two elements.

${\mathrm{S}}_2:$ Metallic and covalent radii of potassium are $203 \mathrm{pm}$ and $230 \mathrm{pm}$ respectively.

${\mathrm{S}}_4:$ Formation of ${\mathrm{S}}^{2-}$ and ${\mathrm{Ar}}^{-},$ both require the absorption of energy.