Elemental Magnesium Crystallizes in a Face-Centered Cubic Lattice

question 108

Multiple Choice

Elemental magnesium crystallizes in a face-centered cubic lattice. The density of magnesium is 1.738 g/cm³. The unit cell length is 4.80 × 10² pm. What is the atomic radius of Mg?

• A) 340 pm
• B) 215 pm
• C) 242 pm
• D) 126 pm
• E) 170 pm

---

Definitions:

Democratic Self-Rule

The principle or practice by which a community governs itself through democratic means, allowing individuals within the community to participate directly or indirectly in decision-making processes.

Economic Plan

A strategic outline designed to achieve certain financial and economic goals within a specific timeframe.

National Capital

The city or municipality that serves as the seat of government of a country, state, or region, often housing the central administrative, legislative, and judicial offices.

Ratification

The official way to confirm something, usually by vote, formal consent, or official approval, particularly in the context of treaties, constitutions, and agreements.