Group One (alkali Metals)

Question 1

Group 1 reactivity

Answer 1

More reactive the further you go down
- more electrons
- more shells
- distance between outer shell and inner nucleus increases
- more shielding by inner electron
- easier to lose an electron
-

Question 2

Group 1 melting and boiling point trends

Answer 2

Decrease as you move down the group

Question 3

Lithium and oxygen reaction

Answer 3

Bright purple/ pink flame , makes a white powdery solid

Question 4

Sodium and oxygen reaction

Answer 4

Yellow flame and explodes, makes a white solid

Question 5

Potassium and oxygen reaction

Answer 5

Vigorous purple flame and explodes , white powder left

Question 6

Lithium and water reaction

Answer 6

Fizzes with smoke reaction happens on the surface

Question 7

Sodium with water reaction

Answer 7

Fizzes with orange flame and explodes, turns into a ball moves fast and floats

Question 8

Potassium with water reaction

Answer 8

Lilac flame and fizzes more, moves quicker, explodes faster