Question

Read the labels of several commercial products and identify monatomic ions of at least six main group elements contained in the products. Write the complete electron configurations of these cations and anions.

a. Na⁺ : 1s²2s²2p⁶

b. Mg²+ : 1s²2s²2p⁶

c. Cl⁻ : 1s²2s²2p⁶ 3s²3p⁶

d. O²- : 1s²2s²2p⁶

Answer 1

The question involves identifying electron configurations for monatomic ions of main group elements found in commercial products. Na+, Mg2+, Cl-, and O2- are examples of such ions, each having a noble gas electron configuration after the gain or loss of electrons to attain stability.

Step-by-step explanation:

The subject of this question is electron configurations of monatomic ions from the main group elements found in commercial products. Main group elements typically form ions that have noble gas electron configurations. Here are the electron configurations for the ions mentioned:

Na+ (Sodium ion) - Electron configuration: 1s22s22p6

• Mg2+ (Magnesium ion) - Electron configuration: 1s22s22p6
• Cl− (Chloride ion) - Electron configuration: 1s22s22p6 3s23p6
• O2− (Oxide ion) - Electron configuration: 1s22s22p6

The gain or loss of electrons to form ions results in an outer electron shell that matches the nearest noble gas to the atom in the periodic table.