Atomic Structure Chapter
16 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the term for the number of protons in the nucleus of an atom?

  • Mass Number
  • Atomic Number (correct)
  • Electron Number
  • Valency

    • What type of bond is formed by the transfer of electrons?

  • Covalent bond
  • Ionic bond (correct)
  • Coordinate covalent bond
  • Hydrogen bond

    • What is the result of a chemical change?

  • The formation of a new product (correct)
  • The breakdown of a substance into its constituent elements
  • The mixing of two or more substances
  • The change of state of a substance

    • What is the term for a substance that cannot be further broken down into simpler substances?

    <p>Element</p> Signup and view all the answers

    What is the purpose of a chemical equation?

    <p>To represent a chemical reaction in a concise manner</p> Signup and view all the answers

    What is the term for a change in which no new product is formed?

    <p>Physical change</p> Signup and view all the answers

    What is the sum of the number of protons and neutrons in the nucleus of an atom?

    <p>Mass Number</p> Signup and view all the answers

    What is an example of a compound?

    <p>Water</p> Signup and view all the answers

    What is the primary difference between an atomic number and a mass number?

    <p>The atomic number represents the number of protons, while the mass number represents the sum of protons and neutrons.</p> Signup and view all the answers

    What is the primary characteristic of an ionic bond?

    <p>It is a bond formed by the transfer of electrons.</p> Signup and view all the answers

    What is the primary purpose of a chemical equation?

    <p>To describe the chemical changes in a reaction.</p> Signup and view all the answers

    What is the primary characteristic of a compound?

    <p>It is a combination of two or more elements in a definite ratio by weight.</p> Signup and view all the answers

    What is the primary difference between a physical change and a chemical change?

    <p>A physical change is reversible, while a chemical change is irreversible.</p> Signup and view all the answers

    What is the primary type of bond that is formed between two non-metal atoms?

    <p>Covalent bond</p> Signup and view all the answers

    What is the primary characteristic of an element?

    <p>It is a substance that cannot be further broken down into simpler substances.</p> Signup and view all the answers

    What is the primary purpose of a subscript in a chemical symbol?

    <p>To indicate the atomic number of an element.</p> Signup and view all the answers

    Study Notes

    Atomic Structure

    • An atom consists of three fundamental particles: electron, proton, and neutron
    • Electron: negatively charged, moves around the nucleus in shells
    • Proton: positively charged, present in the nucleus
    • Neutron: neutral, present in the nucleus

    Atomic Number and Mass Number

    • Atomic Number (Z): number of protons in the nucleus or number of electrons in orbit
    • Atomic Number is written as a subscript on the left side of the chemical symbol (e.g., 6C, 7N)
    • Mass Number (A): sum of number of neutrons and protons in the nucleus

    Types of Changes

    • Physical Change: temporary and reversible change, no new product formed (e.g., butter melting on warm toast)
    • Chemical Change: irreversible change, resulting in at least one new product formed

    Substances

    • Compound: formed when two or more elements combine in a definite ratio by weight (e.g., H2O)
    • Mixture: formed when two or more substances combine in a definite ratio by weight (e.g., air)
    • Element: a substance that cannot be further broken down (e.g., H, O)

    Chemical Equations

    • A shorthand method of describing a chemical reaction using symbols
    • Example: Zn + H2SO4 → ZnSO4 + H2

    Chemical Bonding

    • Three types of chemical bonds: ionic, covalent, and coordinate covalent
    • Ionic Bonding: formed by the transfer of electrons

    Atomic Structure

    • An atom consists of three fundamental particles: electron, proton, and neutron
    • Electron: negatively charged, moves around the nucleus in shells
    • Proton: positively charged, present in the nucleus
    • Neutron: neutral, present in the nucleus

    Atomic Number and Mass Number

    • Atomic Number (Z): number of protons in the nucleus or number of electrons in orbit
    • Atomic Number is written as a subscript on the left side of the chemical symbol (e.g., 6C, 7N)
    • Mass Number (A): sum of number of neutrons and protons in the nucleus

    Types of Changes

    • Physical Change: temporary and reversible change, no new product formed (e.g., butter melting on warm toast)
    • Chemical Change: irreversible change, resulting in at least one new product formed

    Substances

    • Compound: formed when two or more elements combine in a definite ratio by weight (e.g., H2O)
    • Mixture: formed when two or more substances combine in a definite ratio by weight (e.g., air)
    • Element: a substance that cannot be further broken down (e.g., H, O)

    Chemical Equations

    • A shorthand method of describing a chemical reaction using symbols
    • Example: Zn + H2SO4 → ZnSO4 + H2

    Chemical Bonding

    • Three types of chemical bonds: ionic, covalent, and coordinate covalent
    • Ionic Bonding: formed by the transfer of electrons

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    This quiz covers the basics of atomic structure, including the three fundamental particles of an atom: electrons, protons, and neutrons, as well as the concept of atomic number.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser