Question

1. choose the best answer.

two elements have an electronegativity difference of 0.13.
what type of bond will form between them?
ionic
nonpolar covalent
polar covalent

1. choose the best answer.

any atoms that have lost electrons are called ______.
cations
anions

Explanation:

• For question 16:
• If the electronegativity difference ($\Delta EN$) between two atoms is less than \(0.5\), the bond is non - polar covalent. Since \(0.13<0.5\), it is non - polar covalent.
• Ionic bonds have a large electronegativity difference (usually \(\Delta EN>1.7\)). Polar covalent bonds have \(0.5\leq\Delta EN\leq1.7\).
• For question 17:
• Atoms that lose electrons have a positive charge. Cations are positively charged ions. Anions are negatively charged ions (formed by atoms gaining electrons).

Answer:

1. nonpolar covalent
2. cations