GROUPS Flashcards
1
Q
What are the key characteristics of group 1 metals?
A
- Soft
- Low melting point
- 1 electron on the outer shell
- very reactive
2
Q
Result of potassium + Water ?
A
- Melting
- Lilac flame
- effervescence
3
Q
Result of Sodium + water ?
A
- Melting
- effervescence
4
Q
Result of Calcium + water?
A
- Metal runs along the water
- effervescence
5
Q
What is the appearance of CHLORINE at room temperature?
A
- Green gas
6
Q
What is the appearance of BROMINE at room temperature?
A
- Brown liquid
7
Q
What is the appearance of IODINE at room temperature?
A
- Grey solid
8
Q
What is the test for chlorine?
A
- Damp blue litmus paper turns white in the presence of chlorine.
9
Q
In displacement reactions what Halide will produce the colour change?
A
The Halide that has been displaced will produce the colour change?
10
Q
Colour of chlorine solution?
A
Colourless
11
Q
Colour of bromine solution?
A
Orange
12
Q
Colour of iodine solution?
A
Brown
13
Q
Why does the boiling point increase going down the group?
A
The intermolecular forces get stronger and need more energy to break apart.
