Q.Give one example for each of the following

Step 1. Table 2.1 gives the traditional family name assigned to each p-block group: group 13 = icosagens, group 14 = tetragens, group 15 = pnictogens, group 16 = chalcogens (with group 17 = halogens and group 18 = inert gases, though those two are not asked for here).

Step 2. (i) Icosagens (group 13). Any group 13 element qualifies -- boron is the natural example, being the group's first and most chemically detailed member in this unit.

Step 3. (ii) Tetragen (group 14). Any group 14 element qualifies -- carbon is the natural example, being the group's first member and the focus of Section 2.3.

Step 4. (iii) Pnictogen (group 15). Any group 15 element qualifies -- nitrogen, the group's first member, is the standard example (this group's own detailed chemistry is covered in the sequel unit, p-Block Elements-II). …

Match each family name to its group number using Table 2.1, then name any one ele …

• Mixing up the family-name-to-group-number pairing (e.g. calling group 14 the pnictogens) -- Table 2.1 assigns each name to one specific group number, and th …