Question

Which of the following represents
outermost shell electronic
configuration of halogens ?​

Answer 1

Answer:

okkkkkkkkkkkkkkkkkkkkkkkkkk

Answer 2

Answer:

Explanation:The halogens all have seven electrons in their outer shells. The electron configuration in the outer shell is ns 2 np 5 . As the atomic number increases, the reactivity of the halogens decreases. Fluorine and chlorine exist as gases at room temperature, while bromine is a liquid, and iodine is a solid.The halogens all have seven electrons in their outer shells. The electron configuration in the outer shell is ns 2 np 5 . As the atomic number increases, the reactivity of the halogens decreases. Fluorine and chlorine exist as gases at room temperature, while bromine is a liquid, and iodine is a solid.