| Hint | Answer | % Correct |
|---|---|---|
| What are the three states in the particle model? | Solid liquid gas | 96%
|
| In which state are these forces the weakest? | Gas | 76%
|
| What is the nucleus surrounded by? | electrons | 61%
|
| What are the forces between particles? | electrostatic | 38%
|
| What element has the smallest atoms? | Helium | 35%
|
| Physical changes are... | reversible | 35%
|
| What do you call charged particles? | Ions | 34%
|
| What do you call atoms with the same number of protons and electrons but different numbers of neutrons? | Isotopes | 28%
|
| What is is called when something is made from two or more atoms joined together? | molecule | 25%
|
| What model did he^ use to show this? | The plum pudding model | 16%
|
| Who pointed beams of alpha particles at thin gold foil in 1909? | Rutherford | 15%
|
| How are these^ arranged? | in shells | 14%
|
| Where did he^ find most of the mass was? | the nucleus | 13%
|
| what is the relative mass of an electron? | 0.0005 | 8%
|
| What can you calculate using the mass number and the atomic number? | Number of neutrons | 8%
|
| How do you form ions? | losing or gaining electrons | 6%
|
| Who did Bohr disprove? | Rutherford | 6%
|
| When was this^? | 1803 | 5%
|
| Who suggested all matter is made from atoms? | Dalton | 5%
|
| Who discovered the first subatomic particle in 1897? | Thomson | 5%
|
| How did he^ say the electrons were arranged instead? | in shells | 4%
|
| What attractive forces are these joined together by? | chemical bonds | 3%
|
| What 3 things does the particle model not take into account? | Forces, size, or spaces between particles | 1%
|
| What did he^ also suggest the electrons did? | orbit the nucleus | 1%
|
| What is a bond length? | the distance between the centres of two joined atoms | 1%
|
| When was this^? | 1913 | 0%
|
| What 2 things did he^ also suggest? | all atoms of an element are identical and different elements contain different types of atom | 0%
|
| What did he^ find out about the nucleus? | it was positively charged | 0%
|
| How do you calculate the mass number? | Number of protons + number of neutrons | 0%
|
| What did he^ also discover about the structure and charge or atoms? | That they had electrons and were neutral overall | 0%
|