Group 1 - The Alkali Metals Flashcards
(5 cards)
1
Q
give 4 characteristics of alkali metals
A
quite reactive,
explosive,
get more reactive going down the group,
all react with water
2
Q
what is the equation for an alkali mixing with water?
A
metal + water = metalhydroxide +hydrogen
3
Q
what happens when sodium reacts with water?
A
melts to form a ball that moves on the surface and fizzes vigorously
4
Q
what happens when potassium mixes with water?
A
burns violently with sparks and a lilac flame
5
Q
why do group 1 metals get more reactive going down the group?
A
as they go down one electron is shielded and moves further away
