Group 7 Flashcards
1
Q
What is a disproportionation reaction?
A
A reaction where an element is both oxidised and reduced
2
Q
What is the boiling point trend in Group 7?
A
Increases down the group
3
Q
Why does boiling point increase down the group?
A
Extra shell of electrons leads to a higher level of Van der Waal’s forces between molecules
4
Q
What is the reactivity trend in Group 7?
A
Decreases down the group
5
Q
Why does reactivity decrease down the group?
A
Atomic radius increases, which increases electron shielding making it harder to gain an electron
6
Q
What colour is formed when iodine is added to cyclohexane?
A
Violet
