Watch the video below and answer the following questions.
1. How many elements were recently discovered?
2. Who first said you can’t keep making bigger and bigger atoms?
3. What is atomic weight?
4. According to Feynman, why can’t atoms have 137 or more protons?
5. Today, what do we think is the greatest number of protons that can be found in an atom?
6. As you increase the number of protons, the elements become more __________.
7. How large do you think our periodic table will get and why?