The table below shows the properties of some elements in period 3. The letters used do not represent the actual symbols of the elements.
| Element |
Solubility in water |
Melting point (0C) |
Electrical conductivity |
Thermal conductivity |
| A |
Reacts vigorously |
98 |
Conducts |
Conducts |
| B |
Slow reaction |
650 |
Conducts |
Conducts |
| C |
No reaction |
660 |
Conducts |
Conducts |
| D |
No reaction |
1410 |
Semi-conductor |
Semi-conductor |
| E |
No reaction |
44 |
Does not conduct |
Does not conduct |
| F |
No reaction |
119 |
Does not conduct |
Does not conduct |
| G |
Slight reactions |
-101 |
Does not conduct |
Does not conduct |
| H |
No reaction |
-189 |
Does not conduct |
Does not conduct |
a) Which of the following elements are metals. Click on the correct answers.