Why the number of elements in the third period is 8?

Related questions

1. What is the highest atomic number?
2. What is atomic mass number?
3. How many elements are there in the Periodic Table 2018?
4. What is 16 in the periodic table?
5. Where is the atomic number?
6. How do we calculate the atomic mass?
7. How mass number is calculated?
8. What is number 4 on the periodic table?
9. Why does the second period have 8 elements?
10. What is Group 5 called on the periodic table?

Tags

1. #according
2. #elements
3. #hence
4. #number
5. #period
6. #electrons
7. #accommodate
8. #shell
9. #cannot
10. #maximum
11. #third