Question

The atomic numbers of two elements a and b are 18 and 16 which of the two should be chemically reactive and why

Answer 1

element b with atomic no. 16 will be more reactive bcoz element a fills the octate but b does not fills and it's valency is 2 so it is reactive bcoz it will try to fill it's octate or the outer shell completely... pls Mark it as brainliest answer