Alkali Metals Flashcards
1
Q
Define alkali metals
A
Metals in group 1 of the periodic table (lithium, sodium, potassium, rubidium, caesium, francium)
2
Q
What happens to the melting point as one goes down the Alkali Metal group?
A
The melting point decreases
3
Q
What happens to the reactivity of the metals as one goes down the group?
A
The reactivity increases
4
Q
Define the physical properties of alkali metals
A
Soft
Low melting and boiling points - forces of attraction are weak
Low densities - float on water
5
Q
How can one test the reactivity of alkali metals?
A
By putting them in cold water
6
Q
What is the formula for the reaction of alkali metals with water?
A
Alkali Metal + Water -> Metal Hydroxide + Hydrogen
