Answer:
Halogen / salt-former
Explanation:
Bromine is classified as an element in the 'Halogens' section which can be located in group 7 of the Periodic Table. The term "halogen" means "salt-former" and compounds containing halogens are called "salts".
Answer:
I dont know the first blank but I know the second one is groups and the last one is periods.
None. Neon has two layers of electrons, both filled completely. This means that there cannot be unpaired electrons in this atom.