How many electrons does the first shell allow?
Two
How many electrons do the shells after the second allow?
Eight
Which group of elements have full outer shells?
The Noble Gases - Group 0
What happens when the outer shell is not full?
The atoms react with others to fill the shells
What is the electronic structure for an element with 5 protons?
2,3
What is another name for shells?
Energy Shells
What is the electronic structure for aluminium?(13 protons)
2,8,3