Group 1 - Alkali Metals Flashcards
1
Q
What do group 1 have in common ?
A
All have 1 e- in their outershell so they have similar chemical properties
2
Q
Facts about group 1 ?
A
They are all soft and have a low density ( float on water )
3
Q
As you go down the group what happens?
A
1) reactivity increases as the outer electron is more easily lost ( further away from nucleus )
2) melting and boiling points decrease
3) relative atomic mass increases ( top number )
4
Q
What happens when alkali metals react ?
A
By losing 1 electron and form positive ions
5
Q
What are the compounds formed in alkali metals ?
A
White solids
Colourless solutions
