Topic 3 Chemical Bonding

What is true about metallic bond?

• Ions surrounded by a sea of mobile electrons.
• Forces that hold atoms together between molecules.
• Formed by sharing of electrons between two atoms.
• Formed by the transfer of electrons.

What is true about covalent bond?

• Formed by sharing of electrons between two atoms.
• Ions surrounded by a sea of mobile electrons.
• Between metal and non-metals.
• Formed by the transfer of electrons.

What is true about Ionic bond?

• Formed by the transfer of electrons.
• Ions surrounded by a sea of mobile electrons.
• Between metals and metals.
• Formed by sharing of electrons between two atoms.

What is true about intermolecular forces?

• Forces that hold atoms together between molecules.
• Ions surrounded by a sea of mobile electrons.
• Between non-metals and non-metals.

What is a polar covalent bond?

• Bond formed when a shared pair of electrons are not shared equally.
• Ions surrounded by a sea of mobile electrons.
• Bond formed when electrons are shared equally between the two atoms.
• Forces that hold atoms together between molecules.

What causes a polar covalent bond?

• Elements having a higher electronegativity than the other.
• Ions surrounded by a sea of mobile electrons.
• Bond formed when electrons are shared equally between the two atoms.
• Formed by sharing of electrons between two atoms.

What is a non-polar covalent bond?

• Bond formed when electrons are shared equally between the two atoms.
• Bond formed when a shared pair of electrons are not shared equally.
• Ions surrounded by a sea of mobile electrons.
• Elements having a higher electronegativity than the other.

What causes a non-polar covalent bond?

• The distribution of electron density between the two atoms is equal.
• Bond formed when a shared pair of electrons are not shared equally.
• Ions surrounded by a sea of mobile electrons.
• Elements having a higher electronegativity than the other.

What is not true about a dative bond?

• As strong as ionic bonds.
• Also called a dipolar bond.
• Both electrons come from one atom.
• It is a coordinate covalent bond.

What is not true about hydrogen bonds?

• It is an ionic molecules.
• For example, in water molecules (H2O).
• Hydrogen is covalently bonded to the more electronegative oxygen atom.
• dipole-dipole interactions between the hydrogen atom and the oxygen atom of different H2O molecule.
• A polar covalent molecules.