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Chapter 5: Problem 3

What do we call the smallest unit of a compound that retains the properties of the compound?

Short Answer

Expert verified
Molecule

Step by step solution

01

Understand the Question

Determine what is being asked. The question wants to know the term for the smallest unit of a compound that retains the compound's properties.
02

Identify Key Concepts

Recognize that a compound is a substance made of two or more different types of atoms bonded together. The smallest unit that retains the chemical properties of the compound is a molecule.
03

Verify the Answer

Check if the term 'molecule' fits the description. A molecule is indeed the smallest unit of a chemical compound that can exist while retaining the chemical properties of the compound.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

headline of the respective core concept
In chemistry, a molecule is the smallest unit of a compound that retains its chemical properties. Molecules consist of two or more atoms bonded together. For example, a water molecule (H鈧侽) comprises two hydrogen atoms and one oxygen atom. These atoms are held together by chemical bonds, specifically covalent bonds, where electrons are shared between atoms. Hence, a molecule is the basic building block of a compound and determines the compound's properties. Molecules are not limited to any specific size; they can range from two atoms (diatomic molecules) to many thousands of atoms, seen in complex compounds like proteins and DNA.
headline of the respective core concept
Chemical properties refer to how a substance interacts with other substances and changes during chemical reactions. Each molecule of a compound retains these specific properties. These properties include:

  • Reactivity: How a compound reacts with other substances
  • pH: Measures how acidic or basic a substance is
  • Solubility: How well a substance dissolves in a solvent
  • Flammability: How easily a substance catches fire
For instance, water has specific chemical properties: it can break down into hydrogen and oxygen gases when electrified. Therefore, every water molecule behaves similarly, ensuring that water consistently exhibits these chemical properties.
headline of the respective core concept
A compound is a substance formed when two or more different types of atoms bind together chemically. Each compound has unique properties that are different from the individual elements that make it up. For example, sodium (a metal) and chlorine (a gas) combine to form sodium chloride (table salt), which has entirely different properties from its constituent elements. Compounds are classified by the types of bonds they contain, such as ionic bonds in table salt or covalent bonds in water. Understanding compounds involves knowing how atoms interact, bond, and create new substances with distinctive characteristics.

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Most popular questions from this chapter

Use the periodic table to find the atomic number and atomic mass of sodium (Na).

What do we call the smallest unit an element can be broken into and still have the same properties?

What does the atomic number tell us about an atom?

What is meant by the atomic mass of an element?
See all solutions

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