Embibe Experts Solutions for Chapter: Classification of Elements and Periodicity in Properties, Exercise 1: Exercise 1

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:

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:

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

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

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.

The correct order of Pauling electronegativity is: