PDF Notes: CHEM1701_Week3_instructor

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    What is the structure of an atom?

    Atoms consist of a nucleus, shells, and subatomic particles.

    What are the three main subatomic particles?

    Protons, neutrons, and electrons make up an atom.

    How do protons differ from electrons?

    Protons are positively charged, while electrons are negatively charged.

    What does atomic number represent?

    It indicates the number of protons in an element.

    How is the periodic table organized?

    Elements are arranged by increasing atomic number.

    What happens if an atom gains or loses electrons?

    It becomes an ion with a positive or negative charge.

    What is the significance of unified atomic mass units?

    They provide a standard for measuring the mass of atomic particles.

    How are element symbols determined?

    They can be based on discovery location, discoverer, or Latin names.

    What distinguishes groups from periods in the periodic table?

    Groups are vertical columns, while periods are horizontal rows.

    What does Niels Bohr's model of the atom describe?

    Electrons orbit the nucleus in distinct shells.