Pearson 9Ga2 - Covalent Bonding and Structure

What will happen to the distance between the nuclei if there are more electrons?

• It will fluctuate depending on the type of atoms involved

• It will be less as the electrostatic attraction between electrons and nuclei is greater

• It will increase as the electrostatic attraction between electrons and nuclei is weaker

• It will remain the same regardless of the number of electrons

Are the following giant or simple covalent - Graphite, O₂, SiO₂, H₂O, I₂, Diamond?

• Giant, giant, simple, simple, giant, simple, giant

• Simple, simple, giant, giant, simple, giant, simple

• Simple, giant, simple, giant, giant, simple, simple

• Giant, simple, giant, simple, simple, giant

What is the smallest molecule ?

• CO₂

• H₂

• O₂

• H₂O

Which type of bonding involves non-metals of similar electronegativity sharing electrons?

• Hydrogen Bond

• Covalent Bond

• Metallic Bond

• Ionic Bond

What is the definition of a covalent bond?

• Transfer of electrons between atoms

• Sharing of 2 electrons between 2 atoms

• Attraction between positive and negative ions

• Formation of a crystal lattice structure

What do electrons act like in a covalent bond?

• Springs pushing atoms apart

• Chains linking atoms together

• Magnets repelling each other

• Glue holding atoms together

Which type of covalent substances consist of very large molecules like polymers?

• Metallic

• Ionic

• Simple Molecular

• Giant Covalent

What is the main reason atoms share electrons in a covalent bond?

• To form ionic compounds

• To create metallic bonds

• To increase the atomic radius

• To achieve a noble gas electronic configuration

What holds all the atoms or molecules together in a giant covalent structure?

• Metallic bonds

• Ionic bonds

• Covalent bonds

• Van der Waals forces

Which type of covalent bonding involves weak intermolecular forces between molecules?

• Simple Molecular

• Giant Covalent

• Metallic

• Ionic