| Question | Answer |
|---|---|
| What is all matter made up of? | Particles called Atoms |
| Are all gases colourless and odourless? | No |
| Which are the two elements that are liquid at room temperature? | Mercury (Hg) and bromine (Br) |
| What is the symbol for hydrogen? | H |
| What is the symbol for potassium? | K |
| What type of elements are electric conductors? | All metals and carbon (graphite) |
| What type of elements are electric insulators? | All non-mentals with the exception of carbon. |
| How do we test for oxygen? | Oxygen relights a glowing splint |
| How do we test for hydrogen? | Hydrogen burns with a pop |
| What elements react when hydrogen is set on fire? | Hydrogen reacts with oxygen |
| What substance is created when oxygen reacts with hydrogen? | Water |
| What is the lightest gas? | Hydrogen |
| How many elements are gases at room temperature? | 11 elements are gases at room temperature |
| What is the only coloured gas in the periodic table? | Chlorine (Cl) |
| Elements in the same group have similar chemical properties. True or false? | True |
| Group 1 of the periodic table contains what type of elements? | Alkali metals |
| Group 0 of the periodic table contains what type of elements? | Noble gases. |
| Group 7 of the periodic table contains what type of elements? | Halogens |
