Please enable JavaScript.
Coggle requires JavaScript to display documents.
Chemical Periodicity (THE HALOGENS
(Group 7) (Properties: (Bromine—Br2…
Chemical Periodicity
THE HALOGENS
(Group 7)
-
-
-
-
Descending:
Less reactive
» Outer shell is further from the nucleus
» More atomic shielding
» Harder to attract an electron to fill the outer shell
-
-
-
-
-
Hydrogen Halides
-
-
Molecules dissociate in water, giving H+ ions
-
-
-
THE NOBLE GASES
(Group 0)
Uses:
-
-
Argon: provide inert atmosphere—eg. lightbulbs to prevent oxidisation of filament, welding to prevent metal from burning
-
-
-
-
-
-
-
-
-