Lewis Dots Diagrams for Covalent Compounds

How many valence electrons does carbon have?

• 8

• 2

• 4

• 6

Tags

NGSS.HS-PS1-1

What is the total number of valence electrons in CO2?

• 16

• 12

• 4

• 8

Which group in the periodic table has elements with 7 valence electrons?

• Group 17

• Group 13

• Group 15

• Group 1

Tags

NGSS.HS-PS1-1

In a Lewis structure, where does hydrogen usually go?

• In the center

• Does not appear

• On the outside

• Varies with compound

What is the total number of valence electrons in N2O?

• 16

• 10

• 14

• 12

Which element is the most electronegative?

• Hydrogen

• Oxygen

• Fluorine

• Carbon

Tags

NGSS.HS-PS1-2

How many valence electrons are there in CH4?

• 4

• 16

• 12

• 8

Tags

NGSS.HS-PS1-1

What is the correct Lewis structure for water (H2O)?

• Linear with oxygen in the middle

• Both hydrogens in the center, oxygen on the outside

• Hydrogen in the center, two oxygens on the outside

• Oxygen in the center, two hydrogens on the outside

What happens if you use up all the valence electrons and don't have an octet?

• The compound is unstable

• It's considered an exception

• Add more electrons

• Form double or triple bonds

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the total number of valence electrons in O2?

• 12

• 16

• 8

• 6

Tags

NGSS.HS-PS1-1