Name: Date: Solving the Puzzle of the Periodic Table Video Notes Worksheet https://youtu.be/O-48znAg7VE Scientists solved the puzzle. Elements belong to families. 1. What might be the greatest gift to science? _________________________________ 2. Hennig Brand, a German alchemist, boiled down his own ______________trying to extract what element? ___________ 3. What element did he actually extract? _______________________. 4. The Greek “periodic table” claimed objects were composed of: ___________________________ ___________________________. 5. Antoine Lavoisier is now known as the father of chemistry. He defined an ______________ as a substance that could ___________________________ 6. Lavoisier created a list of the known elements of his time and tried to put the elements _________________________________. 7. John Dalton weighed the elements and arranged them by ________________________. 8. German chemist, Wolfgang Dobereiner found that certain elements shared ________________________________-. 9. When pure elements of Li, Na and K are exposed to water they will _____________________ and skid across the water with ______________________. 10. Elements belong to _________________________ that share similar properties. 11. The chemist who finally put the pieces together was ______________________________. 12. The story goes that Mendeleev _______________________________________________ about a table to order the elements. Name: ANSWER KEY Date: Solving the Puzzle of the Periodic Table Video Notes Worksheet https://youtu.be/O-48znAg7VE Scientists solved the puzzle. Elements belong to families. 1. What might be the greatest gift to science? The Periodic Table. 2. Hennig Brand, a German alchemist, boiled down his own urine trying to extract what element? Gold 3. What element did he actually extract? Phosphorus 4. The Greek “periodic table” claimed objects were composed of: Earth, Water, Air and Fire 5. Antoine Lavoisier is now known as the father of chemistry. He defined an Element as a substance that could not be broken down. 6. Lavoisier created a list of the known elements of his time and tried to put the elements in some sort of order. 7. John Dalton weighed the elements and arranged them by weight. 8. German chemist, Wolfgang Dobereiner found that certain elements shared similar properties and reactions. 9. When pure elements of Li, Na and K are exposed to water they will react violently_ and skid across the water with sparks. 10. Elements belong to families that share similar properties. 11. The chemist who finally put the pieces together was Dimitri Mendeleev. 12. The story goes that Mendeleev fell into a deep sleep and dreamed about a table to order the elements.