C2.2.2 - Electronic Structures

Question 1

How are elements arranged?

Answer 1

By atomic number

Question 2

Describe the electrons’ arrangement in an atom

Answer 2

First shell always holds upto 2 electrons
Second/Third shell always holds upto 8 electrons
From the fourth shell it’s 18

Question 3

What does the group number indicate?

Answer 3

How many electrons on the outer shell

Question 4

What do the overall amount of numbers indicate? (e,g. Oxygen having 2 in 2,6)

Answer 4

What period it is in