Classification of Elements and Periodicity in Properties PYQs

The correct order of increasing metallic character of Na, Be, P, Mg and Si is:

Identify the incorrect statement from the following:

Which of the following statements are true? A. Unlike Ga that has a very high melting point, Cs has a very low melting point. B. On Pauling scale, the electronegativity values of N and Cl are not the same. C. $\mathrm{Ar}$, $\mathrm{K^+}$, $\mathrm{Cl^-}$, $\mathrm{Ca^{2+}}$, and $\mathrm{S^{2-}}$ are all isoelectronic species. D. The correct order of the first ionization enthalpies of Na, Mg, Al, and Si is: $$\mathrm{Si > Al > Mg > Na}$$ E. The atomic radius of Cs is greater than that of Li and Rb. Choose the correct answer from the options given below:

Arrange the following elements in increasing order of first ionization enthalpy: Li, Be, B, C, N

Arrange the following elements in increasing order of electronegativity: N, O, F, C, Si

The element expected to form largest ion to achieve the nearest noble gas configuration is:

The IUPAC name of an element with atomic number 119 is:

Identify the incorrect match.

Match the following:

Match the oxide given in Column A with its property given in Column B.$$\begin{array}{|c|c|}\hline \text{Column A} & \text{Column B} \\ \hline (i)\; Na_2O & (a)\; \text{Neutral} \\ (ii)\; Al_2O_3 & (b)\; \text{Basic} \\ (iii)\; N_2O & (c)\; \text{Acidic} \\ (iv)\; Cl_2O_7 & (d)\; \text{Amphoteric} \\ \hline \end{array}$$Which of the following options has all correct pairs?

The correct order of N-compounds in its decreasing order of oxidation states is

The correct order of atomic radii in group 13 elements is

Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of X is 1s² 2s² 2p³, the simplest formula for this compound is

The element Z = 114 has been discovered recently. It will belong to which of the following family group and electronic configuration?

Which of the following orders of ionic radii is correctly represented?

What is the value of electron gain enthalpy of $Na^+$ if the ionisation enthalpy of Na is $5.1\,eV$?

Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is:

Among the following which one has the highest cation to anion size ratio?

Amongst the elements with the following electronic configurations, which one of them may have the highest ionization energy?

The correct order of decreasing second ionisation enthalpy of Ti (22), V (23), Cr (24) and Mn (25) is

Which one of the following arrangements does not give the correct picture of the trends indicated against it?

Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest third ionization enthalpy?

A nuclide of an alkaline earth metal undergoes radioactive decay by emission of three $\alpha$-particles in succession. The group of the periodic table to which the resulting daughter element would belong is:

Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species?