The smallest halogen atom is fluorine
Answer:
One
Explanation:
An element is a pure substance in which there are only one kind of atom. Elements are distinct substances that cannot be split up into simpler substances.
Such substances consists of only one kind of atom. There are over a hundred known elements to date.
Generally, as a pure substance, the composition of an element is definite and they are homogenous in all parts.
The answer for this would be 69.6
[Ar] 3d10 4s2 4p5 is the electron configuration of bromine