(SME) Redox Reactions of the Halogens Flashcards
1
Q
How many electrons are in the halogen outer p sub-shell?
A
5
2
Q
How do the halogens react with metals?
A
By accepting an electron from a metal atom to become an ion with 1- charge.
3
Q
What are halogens known as?
A
Oxidising agents.
4
Q
What is an oxidising agent?
A
An element that oxidises (loses an electron) another element.
5
Q
How do halogens oxidise metals?
A
Removing an electron from the metal which increases the oxidation state.
6
Q
What happens to the halogen when it oxidises a metal?
A
The halogen is reduced as it gains the electron from the metal atom which decreases the oxidation number.
