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