Key-Facts-Recall-1a-Atomic-Structure.pptx
- 1. Define a compound Compounds contain two or more elements chemically combined Define a mixture A mixture consists of two or more elements or compounds not chemically combined together State the approximate radius of an atom 1x10-10 metres Describe the current model of the atom A positively charged nucleus composed of both protons and neutrons surrounded by negatively charged electrons What does the atomic number of an atom represent? The number of protons What does the mass number of an atom represent? The number of protons and neutrons Describe the plum pudding model of the atom The plum pudding model of the atom is a ball of positive charge with negative electrons embedded in it State the conclusions of the alpha scattering experiment Most of the atom is empty space and there is a positive nucleus in the centre How did Niels Bohr adapt the model of the atom? He suggested that electrons orbit at specific distances What did James Chadwick do to change the model of the atom? His experiments provided evidence for the existence of the neutrons State the electrical charges of each subatomic particle State the relative mass of each subatomic particle Key Facts Memory Task: Atomic Structure
- 2. 1. Define a compound 2. Define a mixture 3. State the approximate radius of an atom 4. Describe the current model of the atom 5. What does the atomic number of an atom represent? 6. What does the mass number of an atom represent? 7. Describe the plum pudding model of the atom 8. State the conclusions of the alpha scattering experiment 9. How did Niels Bohr adapt the model of the atom? 10. What did James Chadwick do to change the model of the atom? 11. State the electrical charges of each subatomic particle 12. State the relative mass of each subatomic particle Key Facts Memory Task: Atomic Structure
- 3. 1. State the conclusions of the alpha scattering experiment 2. State the approximate radius of an atom 3. What does the mass number of an atom represent? 4. State the relative mass of each subatomic particle 5. Define a compound 6. What did James Chadwick do to change the model of the atom? 7. State the electrical charges of each subatomic particle 8. Describe the current model of the atom 9. What does the atomic number of an atom represent? 10. Describe the plum pudding model of the atom 11. Define a mixture 12. How did Niels Bohr adapt the model of the atom? Key Facts Memory Task: Atomic Structure
- 4. 1. Describe the plum pudding model of the atom 2. Describe the current model of the atom 3. What did James Chadwick do to change the model of the atom? 4. State the electrical charges of each subatomic particle 5. How did Niels Bohr adapt the model of the atom? 6. Define a mixture 7. What does the mass number of an atom represent? 8. State the relative mass of each subatomic particle 9. What does the atomic number of an atom represent? 10. State the conclusions of the alpha scattering experiment 11. Define a compound 12. State the approximate radius of an atom Key Facts Memory Task: Atomic Structure
- 5. 1. How did Niels Bohr adapt the model of the atom? 2. What does the atomic number of an atom represent? 3. State the relative mass of each subatomic particle 4. State the approximate radius of an atom 5. What does the mass number of an atom represent? 6. State the electrical charges of each subatomic particle 7. Describe the plum pudding model of the atom 8. Define a mixture 9. Define a compound 10. What did James Chadwick do to change the model of the atom? 11. Describe the current model of the atom 12. State the conclusions of the alpha scattering experiment Key Facts Memory Task: Atomic Structure
- 6. 1. State the electrical charges of each subatomic particle 2. Describe the current model of the atom 3. What does the atomic number of an atom represent? 4. Describe the plum pudding model of the atom 5. Define a compound 6. State the approximate radius of an atom 7. State the relative mass of each subatomic particle 8. What did James Chadwick do to change the model of the atom? 9. State the conclusions of the alpha scattering experiment 10. How did Niels Bohr adapt the model of the atom? 11. What does the mass number of an atom represent? 12. Define a mixture Key Facts Memory Task: Atomic Structure