" 16.The least reactive element in group "17" is "

Radioactive element of group 17 is

Radioactive element of group 17 is

The most reactive element in the halogen group is _____

The least reactive element among the following is

The least abundant element of IV A group is

Choose the correct statement from the following. a) Zn is the least reactive element. b) 17^th group elements are called halogens. c) All shells possess d subshells. d) f block elements are known as transition elements.