What are the properties associated with individual particles of matter?

Identify the incorrect order of properties among the following:
$(a)$ Basic nature: $Na_2O > MgO > Al_2O_3 > SiO_2$
$(b)$ $2^{nd}$ Ionization Potential $(I.P.)$: $Na > S > P > Si$
$(c)$ Electron affinity: $O > S > Se$
$(d)$ Size: $I^- < I < I^+$

Identify the incorrect order corresponding to the mentioned property.

Based on the provided image, identify the correct option for the elements $A, B, C, D, E$ given that $C$ has the electronic configuration $[Xe] \ 6s^2 \ 5d^1$.

Match the Column $I$ with Column $II$ and select the correct answer using the given codes.

Column $I$ (Element types)	Column $II$ (Electronic configuration)
$A$. Inert-gas elements	$1. (n-1)d^{1-10} ns^{1-2}$
$B$. Transition elements	$2. ns^2 np^6$
$C$. Inner-transition elements	$3. (n-2)f^{1-14} (n-1)s^2 p^6 d^{0-1} ns^2$

Which one of the following sets of ions represents the collection of isoelectronic species?