Decoding Lewis Dot Structures

What do we use to represent an atom in a Lewis dot structure?

• Its atomic mass

• Its atomic number

• Its electron configuration

• Its chemical symbol

How many valence electrons does carbon have?

• 6

• 4

• 2

• 8

What is the correct way to place valence electrons around carbon in a Lewis dot structure?

• Place one in each coordination site first

• Place all four on one side

• Place two on each side

• Pair them up immediately

What happens when unpaired electrons from two different atoms come together?

• They form an ionic bond

• They form a metallic bond

• They form a hydrogen bond

• They form a covalent bond

How many bonds does nitrogen typically form?

• Three

• Four

• Two

• One

What is a sigma bond?

• A bond that contains three electrons

• A bond that contains two electrons

• A bond that contains one electron

• A bond that contains four electrons

What is the second bond in a double bond called?

• Gamma bond

• Sigma bond

• Delta bond

• Pi bond

Which type of bond is the longest?

• Triple bond

• Single covalent bond

• Double bond

• Quadruple bond

What happens if the number of electrons an atom contributes to a Lewis dot structure is different from its typical valence?

• The atom becomes neutral

• The atom gains a formal charge

• The atom loses a formal charge

• The atom becomes an isotope

How many electrons does hydrogen need to fill its outer shell?

• Four

• Three

• Two

• One