1. Louis de Broglie By: Crystal W. and Jasmine P.

2. Biography Louis de Broglie was born in Dieppe, France on 8-15-1892. He had 2 brothers and 2 sisters. There names were Albertine de Broglie, Laure Marie Pauline, Phillipe de Broglie, Maurice de Broglie.

3. Famous Models He is best known for his research on quantum theory. This is the theoretical basis of modern physics that explains the nature, behavior of matter, energy on the atomic and subatomic level.

4. Louis’s Theory He discovered the Theory of Electrons. It is also called the Quantum Theory. The De Broglie equation predicts that all moving particles have wave characteristics.

5. Thoughts and Ideas Louis saw that only odd numbers of wave lengths are allowed in a circular orbit of fixed radius. He also reflected on the fact that light at one time thought to be strictly a wave phenomenon has both wave and particle characteristics.

6. Achievement He was elected a member of the Academy of Sciences of the French Institute in 1933, Louis de Broglie has been its Permanent Secretary for the mathematical sciences since 1942.

7. Wavelengths and Circular Orbits

8. Death Louis de Broglie died on March 19, 1987. He was 94 years old and buried in France.

9. QUIZ!! Where was Louis de Broglie born? a)Dieppe, France b)Moscow, Russia

10. How many brothers and sisters did he have each? a)2 brothers, 2 sisters b)2 brothers, 4 sisters

11. What theory did he discovered? a)Cell Theory b)Theory of Electrons

12. What year did Louis get accepted in the academy? a)1723 b)1933

13. What is the date of his death? a)August 15, 1892 b)March 19, 1987

14. Answers Dieppe, France 2 brothers and 2 sisters Theory of Electrons 1933 March 19, 1987