Final answer:
Jewelry is best made of silver (argentum), a commonly used and durable precious metal, while sodium (natrium) is reactive and unsuitable for jewelry making.
Step-by-step explanation:
If a student asks whether they should have jewelry made of argentum or natrium, it's important to know that argentum is the Latin name for silver (Ag), a precious metal commonly used in jewelry for its luster, durability, and aesthetic appeal. Natrium is the Latin name for sodium (Na), which is a highly reactive metal unsuitable for jewelry as it tarnishes quickly when exposed to air and reacts explosively with water. Most jewelry items are typically made from metals like gold, silver (argentum), and platinum because of their favorable physical and aesthetic properties.