group 1 Flashcards
1
Q
Physical properties of alkaline metals
A
tend to be soft, have low density,low melting and low boiling points
2
Q
what happens as you go down group one? 
A
metals become more reactive and melting and boiling points decrease 
3
Q
why do alkaline metals become more reactive as you go down the group?
A
 outermost shell is further away from the nucleus
Weakening electrostatic force to the nucleus
So electron is more easily lost
4
Q
what forms when alkali metals reactive, water
A
alkaline metal + water➡️ metal hydroxide + hydrogen
5
Q
what forms when alkali metals reactive oxygen?
A
A metal oxide
6
Q
what can form when sodium reacts with oxygen?
A
Sodium oxide or sodium peroxide
7
Q
what can form when potassium reacts with oxygen?
A
Potassium, peroxide, or potassium oxide
