C2-5 Electronic Structure

What is the correct number of electrons that can be added to each of the first 3 shells?

• 2,8,1

• 2,8,8

• 8,8,8

• 8,8,2

The number of shells of electrons an atom has is the same as...

• The mass number

• The atomic number

• The group

• The period

The number of outer shell electrons an atom has is the same as...

• The mass number

• The atomic number

• The group

• The period

Give the chemical symbol of the element shown in the diagram

Which element has the electronic configuration 2,8,1

• Hydrogen

• Potassium

• Lithium

• Sodium

Which element has the electronic configuration 2,8,7

• Fluorine

• Chlorine

• Bromine

• Iodine

Which element has the electronic configuration 2,5

• Neon

• Lithium

• Silicon

• Nitrogen

Give the chemical symbol of the element shown in the diagram

The electronic structure for chlorine is shown in the diagram as 2,8,7. Using the same style of notation give the electronic structure for aluminium.

The electronic structure for chlorine is shown in the diagram as 2,8,7. Using the same style of notation give the electronic structure for carbon.