Question

Which sample has atoms that are arranged in a regular geometric pattern?

• A. $KCl\left(l\right)$
• B. $Na{C}_2{H}_3{O}_2\left(s\right)$
• C. $FeS{O}_4\left(aq\right)$
• D. $NaCl\left(aq\right)$
• E. $HCl\left(aq\right)$

Answer 1

The correct option is B $Na{C}_2{H}_3{O}_2\left(s\right)$

The only regular geometric pattern should be seen in solids; and the only solid molecule available in the option is ${Na}_2{C}_2{H}_3{O}_2$

Only solids can be classified as crystalline, with particles arranged tightly in geometric patterns. Solids may be also classed as amorphous solids. The crystals in amorphous solids, such as clay are arranged more loosely and randomly allowing the shape of the material to be altered.