Question

chemistry i s1: sci6111s1 9 chemistry i s1 (lms) 3 - d assessment: chemical bonding (lms graded) the following figure shows the bond formation of sodium chloride, which is the compound commonly known as table salt. which of the following statements are true once the sodium chloride bond formation shown in the figure takes place? select all that apply. a. the resulting sodium cation has a stable octet in its valence shell. b. the resulting chlorine anion has a stable octet in its valence shell. c. the electrostatic attraction between the positive sodium ion and negative chlorine ion forms a nonpolar bond. d. the electrostatic attraction between the positive sodium ion and negative chlorine ion forms a polar covalent bond. e. the electrostatic attraction between the positive sodium ion and negative chlorine ion forms an ionic bond.

Explanation:

• Sodium (Na) has 1 valence - electron. When it forms an ion, it loses this electron to achieve a stable octet, becoming a sodium cation ($Na^+$). So, statement A is true.
• Chlorine (Cl) has 7 valence - electrons. It gains 1 electron to achieve a stable octet, becoming a chloride anion ($Cl^-$). So, statement B is true.
• The bond between sodium and chlorine is an ionic bond, which is formed by the electrostatic attraction between a positive sodium ion and a negative chlorine ion. So, statement E is true. Non - polar and polar covalent bonds involve sharing of electrons between atoms, which is not the case here. So, statements C and D are false.

Answer:

A. The resulting sodium cation has a stable octet in its valence shell.
B. The resulting chlorine anion has a stable octet in its valence shell.
E. The electrostatic attraction between the positive sodium ion and negative chlorine ion forms an ionic bond.