group 1 - the alkali metals Flashcards
1
Q
what colour are alkali metals?
A
silvery
2
Q
what hardness are alkali metals?
A
soft
3
Q
do alkali metals tarnish quickly or slowly?
A
quickly
4
Q
are alkali metals reactive or unreactive?
A
reactive
5
Q
are alkali metals good conductors of electricity?
A
yes
6
Q
boiling point trend for halogens
A
the boiling point increases, going down the group.
7
Q
the halogens all form diatomic molecules - what does this mean
A
they go round in pairs - f2, Cl2, I2.
8
Q
name the 7 diatomic molecules.
A
H, o, f, Br, I, N, Cl
