What is the affinities of sphenodon?

Electron affinity of :

Why are electron affinities of noble gases zero? Arrange halogens in increasing order of electron affinity.

angiosperm external characters || flower structure || fertilisation || life cycle || economic importance || classification || affinity of angiosperms || affinities of angiosperms and gymnosperms

The electron affinity of

Electron affinity is the

Electron affinity depends on