Editing Group 7 element (section)

== Chemical properties ==

Like other groups, the members of this family show patterns in its [[electron configuration]], especially the outermost shells:

{| class="wikitable" style="white-space:nowrap;"
|-
!''[[Atomic number|Z]]'' !! [[Chemical element|Element]] !! Electrons per [[Electron shell|shell]]
|-
| 25 || manganese || 2, 8, 13, 2
|-
| 43 || technetium || 2, 8, 18, 13, 2
|-
| 75 || rhenium || 2, 8, 18, 32, 13, 2
|-
| 107 || bohrium || 2, 8, 18, 32, 32, 13, 2
|}

All the members of the group readily portray their group oxidation state of +7 and the state becomes more stable as the group is descended. Technetium also shows a stable +4 state whilst rhenium exhibits stable +4 and +3 states.

Bohrium may therefore also show these lower states as well. The higher +7 oxidation state is more likely to exist in oxyanions, such as perbohrate, BhO<sub>4</sub><sup>−</sup>, analogous to the lighter [[permanganate]], [[pertechnetate]], and [[perrhenate]]. Nevertheless, bohrium(VII) is likely to be unstable in aqueous solution, and would probably be easily reduced to the more stable bohrium(IV).<ref>{{Cite book |title=The chemistry of the actinide and transactinide elements |date=2006 |publisher=Springer |isbn=978-1-4020-3555-5 |edition=3rd |location=Dordrecht}}</ref>