The Crystalline Structure Known as Hexagonal Close-Packed

question 21

Multiple Choice

The crystalline structure known as hexagonal close-packed

• A)is characterized by the stacking of identical spheres.
• B)occurs when every ion has eight nearest-neighbor ions of opposite charge.
• C)corresponds to an alternating pattern of ions.
• D)occurs when an ion of either kind has six nearest neighbors of the other kind.
• E)None of these is correct.

---

Definitions:

Sinn Féin

Sinn Féin is an Irish republican political party established in the early 20th century, advocating for Irish nationalism and the reunification of Ireland.

Irish Independence

Refers to the complex historical process through which Ireland achieved independence from the United Kingdom, notably marked by the Easter Rising of 1916 and the establishment of the Free State in 1922.

Treaty of Sèvres

A 1920 treaty that delineated the partitioning of the Ottoman Empire after World War I, leading to significant territorial losses for the Ottomans and the establishment of new nations.

Turkish Ottoman Empire

A vast empire founded at the end of the 13th century in northwestern Anatolia by the Turkic leader Osman I, which at its height spanned three continents, including much of Southeastern Europe, Western Asia, and North Africa, until its dissolution in 1922.