1. How many electrons can occupy the first shell? How many can occupy the second shell? 2. Which electrons are represented by an electron-dot structure? 3. How do the electron-dot structures of...

1. How many electrons can occupy the first shell? How many can occupy the second shell?

2. Which electrons are represented by an electron-dot structure?

3. How do the electron-dot structures of elements in the same group in the periodic table compare with one another?