The position of three elements A, B and C in the Periodic Table are shown below : {:("Group 16","Group 17"),(-,-),(-,A),(-,-),(B,C):} (a) State whether A is a metal or non-metal. (b) State whether C is more reactive or less reactive than A. (c) Will C be larger or smaller in size than B? (d) Which type of ion, cation or anion, will be formed by element A ?

The position of three elements A, B and C in the Periodic Table are sh

1.	The position of three elements A, B and C in the Periodic Table are shown below : {:("Group 16","Group 17"),(-,-),(-,A),(-,-),(B,C):} (a) State whether A is a metal or non-metal. (b) State whether C is more reactive or less reactive than A. (c) Will C be larger or smaller in size than B? (d) Which type of ion, cation or anion, will be formed by element A ?
Answer» Solution :(a) Elements on the right hand SIDE of the PERIODIC Table are non-metals. Thus, A is a non-metal. (b) As we move down the GROUP 17, reactivity decreases. Therefore, C is less reactive than A (c) As we move from left to right in a period, atomic radius decreases. Therefore, C will be smaller than B. (d) Non-metals have a TENDENCY to gain electrons. Therefore, A will form anion.