Periodic Classification of Elements

Match the oxide given in column A with its property given in column B. Which of the following options has all correct pairs?

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

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

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Ionisation enthalpy increases along each series of the transition elements from left to right.…

Identify the incorrect match. Name IUPAC Official Name (a) Unnilunium (i) Mendelevium (b) Unniltrium (ii) Lawrencium (c) Unnilhexium (iii) Seaborgium (d) Unununium (iv) Darmstadtium

Match the element in column I with that in column II. Column-I Column-II (a) Copper (p) Non-metal (b) Fluorine (q) Transition metal (c) Silicon (r) Lanthanoid (d) Cerium (s) Metalloid Identify the correct match :

The formation of the oxide ion, $O^{2-}(g)$ , from oxygen atom requires first an exothermic and then an endothermic step as shown in below:…

Which of the following oxide is amphoteric?

Match the element in column I with that in column II. Column-I Column-II (a) Copper (p) Non-metal (b) Fluorine (q) Transition metal (c) Silicon (r) Lanthanoid (d) Cerium (s) Metalloid Identify the correct match :

Match List-I with List-II : [image] Identify the correct answer from the options given below:

The species Ar, K+ and Ca2+ contain the same number of electrons. In which order do their radii increase?

Identify the incorrect match. Name IUPAC Official Name (a) Unnilunium (i) Mendelevium (b) Unniltrium (ii) Lawrencium (c) Unnilhexium (iii) Seaborgium (d) Unununium (iv) Darmstadtium