Ph Sc: Lewis Dot Structure

Open Ended

What do you think the dots stand for?

Multiple Choice

Which scientist developed the Lewis Dot Structure and in what year?

• Gilbert N Lewis, 1916

• Marie Curie, 1903

• Dmitri Mendeleev, 1869

• Linus Pauling, 1932

Multiple Choice

Which groups on the periodic table have exactly 2 valence electrons?

• Group 2

• Group 1 and Group 2

• Group 13 and Group 14

• Group 17

Labelling

Drag the correct amount of valence electrons to the correct group on the periodic table.

Drag labels to their correct position on the image

7 VE

3 VE

2 VE

5 VE

1 VE

8 VE

Multiple Choice

In a Lewis structure, what do the dots and lines represent?

• Dots represent electrons, lines represent bonds

• Dots represent protons, lines represent neutrons

• Dots represent atoms, lines represent molecules

• Dots represent energy levels, lines represent electron clouds

Multiple Choice

Which rule must you follow when placing electrons in a Lewis dot structure?

• Place all electrons on one side first

• Put an electron at each side before pairing them up

• You can have up to 3 electrons at each side

• Only pair electrons from the start

Multiple Choice

Which of the following elements would have 5 dots in its Lewis dot structure?

• Oxygen

• Nitrogen

• Boron

• Helium

Open Ended

Why is the bottom Lewis dot structure for carbon incorrect?

Draw

Draw the lewis dot structure for each of the two elements.

Draw

Draw the lewis dot structure for each of the two elements.