Question

question 3
what makes crystalline solids like salt or quartz stronger than amorphous solids like plastic?
the repeating atomic structure holds them together tightly
the bonds in crystals are magnetic and change shape
crystalline solids are made from multiple types of matter
they have more atoms packed into each molecule
solids can look very different at the atomic level.
in crystalline solids, the atoms are arranged in a repeating, ordered pattern. these patterns are called crystalline structures. examples include salt, quartz, and metals.
geometric shapes like cubes or hexagons

Explanation:

To determine why crystalline solids (like salt or quartz) are stronger than amorphous solids (like plastic), we analyze each option:

• Option 1: Crystalline solids have a repeating atomic structure (lattice) that holds atoms tightly in an ordered, repeating pattern. This regular arrangement allows for strong, uniform bonding throughout the structure.
• Option 2: Bonds in crystals are not typically magnetic, and the ability to change shape is not related to their strength compared to amorphous solids.
• Option 3: Crystalline solids are usually made of a single type of repeating unit (e.g., ions in salt, atoms in quartz), not multiple types of matter.
• Option 4: The number of atoms per molecule is not the reason for the strength difference between crystalline and amorphous solids.

The repeating atomic structure provides a stable, strong framework, making crystalline solids stronger.

Answer:

The repeating atomic structure holds them together tightly