Predict whether the bonding between the following pairs of elements would be primarily ionic or covalent. Justify your answers: a) Rb and Cl b) P and O c) Ga and F

Here are the explanations for each question:

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1. Predict whether the bonding between the following pairs of elements would be primarily ionic or covalent. Justify your answers.

• a) Rb and Cl

  • Rubidium (Rb) is an alkali metal, and Chlorine (Cl) is a halogen (non-metal). The electronegativity difference between a metal and a non-metal is typically large.
  • Bond type: Ionic
  • Justification: There is a large electronegativity difference, leading to the transfer of electrons from Rb to Cl.

• b) P and O

  • Phosphorus (P) and Oxygen (O) are both non-metals. The electronegativity difference between two non-metals is typically moderate.
  • Bond type: Covalent
  • Justification: Both are non-metals, so they will share electrons to achieve stable electron configurations.

• c) Ga and F

  • Gall