An element 'a' belongs to third period and 17 group of the periodic table A)write atomic no.and electronic configuration of 'a'. B)state whether 'a'is metal or non metal. C)write the nature of bond formed if 'a'reacts with another element 'b'of electronic configuration 2,8,1. D)write the formula of the compound formed.

An element 'a' belongs to third period and 17 group of the periodic ta

1.	An element 'a' belongs to third period and 17 group of the periodic table A)write atomic no.and electronic configuration of 'a'. B)state whether 'a'is metal or non metal. C)write the nature of bond formed if 'a'reacts with another element 'b'of electronic configuration 2,8,1. D)write the formula of the compound formed.
Answer» A should have configuration 2,8,7 it's a non-metal since a required 1 electron to GAIN NOBLE configuration and b should lose 1 e so they will form ionic bond ab is the formula