Atomic Structure and Electron Configuration
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Questions and Answers

What is the relationship between the number of protons in the nucleus and the number of electrons in the atom?

  • The number of protons varies based on the type of atom
  • The number of protons is less than the number of electrons
  • The number of protons is greater than the number of electrons
  • They are equal, making the atom neutral (correct)

    • What determines the orbits in which electrons occupy around the nucleus?

  • Quantum mechanics (correct)
  • Energy required to remove electrons
  • Electrostatic attraction
  • Coulomb's law

    • What force is responsible for the attraction or repulsion between electrons and protons?

  • Electromagnetic force
  • Quantum mechanics
  • Coulomb's law
  • Electrostatic interaction (correct)

    • Why do electrons like to occupy the orbitals closest to the nucleus?

    <p>The electrostatic interaction between electrons and protons is very strong</p> Signup and view all the answers

    What is the main factor that determines whether an electron is weakly attracted to the nucleus?

    <p>Distance from the nucleus</p> Signup and view all the answers

    What does Coulomb's law describe in terms of the force between charges?

    <p>Force attracting or repelling two charges separated by a distance in a vacuum</p> Signup and view all the answers

    How many electrons can the 3rd shell hold?

    <p>18</p> Signup and view all the answers

    Which orbital can hold a maximum of 10 electrons?

    <p>3d</p> Signup and view all the answers

    How many electrons can the 2nd shell hold?

    <p>8</p> Signup and view all the answers

    Which element has the shorthand notation 1s22s22p63s2?

    <p>Magnesium (Mg)</p> Signup and view all the answers

    According to the Periodic Table, which elements have similar outer electron orbital configuration?

    <p>Lithium and Neon</p> Signup and view all the answers

    How are the orbitals arranged in terms of energy levels?

    <p>Lower energy levels closer to the nucleus</p> Signup and view all the answers

    What is the principal quantum number for the 2p orbitals?

    <p>3</p> Signup and view all the answers

    How does the electron-nucleus attraction and electron-electron repulsion affect the chemical nature of an element?

    <p>Greatly affects the chemical nature</p> Signup and view all the answers

    What does the atomic number represent in the Periodic Table?

    <p>Number of protons in the atom</p> Signup and view all the answers

    'Shorthand notation' for an element uses which of the following to indicate the orbital arrangement and number of electrons?

    <p>'Principal Quantum Number' and 'Superscript Number'</p> Signup and view all the answers

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