HW: Covalent Bonds & Bonding Diagrams

Which statement best describes the difference between an ionic bond and a covalent bond?

• Ionic bonds form when atoms share electrons, while covalent bonds form when atoms transfer electrons.

• Ionic bonds form between nonmetals, while covalent bonds form between metals.

• Ionic bonds form when electrons are transferred from one atom to another, while covalent bonds form when electrons are shared between atoms.

• Ionic bonds always form gases, while covalent bonds always form solids.

Tags

NGSS.HS-PS1-1

Which statement correctly describes the relationship between the number of covalent bonds between two atoms and the bond length?

• Triple bonds are the shortest because the atoms are held together most tightly.

• Bond length does not depend on whether the bond is single, double, or triple.

• Double bonds are longer than single bonds but shorter than triple bonds.

• Single bonds are the shortest because they involve fewer electrons.

How does the bond strength compare among single, double, and triple covalent bonds between the same two atoms?

• Double bonds are weaker than single bonds but stronger than triple bonds.

• Single bonds are the strongest because they are the longest.

• Bond strength is the same for all types of covalent bonds.

• Triple bonds are the strongest because they involve the greatest number of shared electrons.

Match the following

• How 2 bonding electrons are shown in a dot diagram

• Dots

• Formed between two nonmetals

• Lone Pair

• How lone pair electrons are shown in a dot diagram

• Ionic Bond

• Formed between metal and nonmetal

• Line

• 2 electrons not shared by atoms in a covalent compound

• Covalent Bond

What is the maximum number of covalent bonds that can form between two atoms?

(a)  

Match each number of valence electrons to the number of covalent bonds it is likely to form in order to achieve a full octet.

HINT: DRAW THEM OUT!

• 1 covalent bond

• 6 valence electrons

• 3 covalent bonds

• 5 valence electrons

• 2 covalent bonds

• 8 valence electrons

• 0 covalent bonds

• 1 valence electron

• 4 covalent bonds

• 4 valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Match each nonmetal to the number of covalent bonds it is likely to form in order to achieve a full octet.

HINT: DRAW THEM OUT!

• 2 covalent bonds

• Hydrogen

• 4 covalent bonds

• Carbon

• 0 covalent bonds

• Sulfur

• 3 covalent bonds

• Argon

• 1 covalent bond

• Nitrogen

Tags

NGSS.HS-PS1-1

Which of the following is the best representation of the Lewis diagram for phosphine, PH₃?

HINT: DRAW IT OUT!

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• None of the answer choices are correct

Tags

NGSS.HS-PS1-3

Which of the following is the best representation of the Lewis diagram for methane, CH₄?

HINT: DRAW IT OUT!

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• 
• 
• 
• None of the answers choices are correct

Which of the following is the best representation of the bonding diagram for carbon dioxide?

HINT: DRAW IT OUT!

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• 
• 
• None of the answer choices are correct