Name elements of group 1 and group 2.

B) a → iii, b → i, c → iv, d → ii

 Correct option is  C) X Y2

The subshell in which the last electron enters decides the block to which an element belongs. In group 1 and group 2 elements, the last electron is filled in the s...

Correct option is: (B) Transition metals The bridge between s-block element and group 13 and 14 elements are transition metal (d-block elements)

i. Group 1 (alkali metals): Two elements of group 1 i.e., sodium and potassium are the sixth and seventh most abundant elements present in the earth’s crust. However, francium does not occur...

Unipositive ions of all the elements of group 1 have inert gas configuration and hence, they have no unpaired electron. Similarly, group 2 elements can lose their two valence shell electrons...

The properties of lithium and beryllium differ from the rest of the group 1 and group 2 elements due to their extremely small size and comparatively high electronegativity.

Sr. no. Property Down a group i Atomic radii Increases ii Ionic radii Increases iii Ionization enthalpy Decreases iv Electronegativity Decreases v Standard reduction potential Decreases

The reducing power of an element is measured in terms of standard electrode potential (E0) corresponding to the following transformation i.e, tendency to lose electron. M(s) \(\longrightarrow\) M+(aq) + e- i. Reducing nature of group...