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_________ is a crystalline’s basic repetitive structural unit.

a) Monomer
b) Molecule
c) Unit cell
d) Atom​

User Eric Tsui
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2 Answers

4 votes

it's unit cell

happy to help:)

User Chirag Bargoojar
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3 votes

Answer:

c) Unit cell

Step-by-step explanation:

A unit cell is a basic repetitive structural unit that forms the building block of a crystalline solid's overall structure. Crystalline solids are characterized by their orderly and repeating arrangement of atoms, ions, or molecules in a three-dimensional pattern. This pattern is replicated throughout the entire crystal lattice.

A unit cell represents the smallest portion of a crystal lattice that, when stacked together, creates the entire crystal structure. It contains a specific arrangement of atoms, ions, or molecules that reflects the symmetry and repeating pattern of the crystal. The unit cell's arrangement determines the overall crystal's shape and properties.

In contrast:

  • An "atom" is the smallest individual particle of an element, consisting of a nucleus of protons and neutrons, surrounded by electrons.
  • A "molecule" is a group of atoms bonded together, forming the smallest unit of a compound that retains the compound's chemical properties.
  • A "monomer" is a molecule that can join together with other monomers to form a polymer, which is a larger molecule made up of repeating units.

Among the options provided, "c) Unit cell" is the correct answer as the basic repetitive structural unit in a crystalline solid.

User Alana
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