6.3.1 Physical and Chemical Properties

• What are the characteristics of noble gases?

  • Non-reactive
  • Full electron shells
  • Stable and inert
• What is the electron configuration of Neon?

  $1s^2 2s^2 2p^6$
• What are the key properties of Neon?

  • Noble gas
  • Colorless, odorless, and non-flammable
  • Extremely stable and unreactive
  • Used in neon lights and lasers
  • Has the highest ionization energy of all elements
• Why are noble gases described as monoatomic?

  Because their atoms exist independently
• What is the atomic symbol for Neon?

  Ne
• How does the electron configuration of Neon explain its properties?

  • Completely filled outer shell (2s^2 2p^6) makes it extremely stable and unreactive
  • High ionization energy due to strong nuclear charge and electron-electron repulsion
  • Filled electron shells result in Neon being colorless, odorless, and non-flammable
• In what applications are helium and neon commonly used?

  In balloons and lasers
• What is the atomic number of Neon?

  10
• What is the nature of noble gases?

  Stable and inert
• What are noble gases?

  A group of non-reactive elements
• Why are noble gases considered stable?

  They have full electron shells
• What are the physical states of noble gases at room temperature?

  Colorless, odorless, and tasteless gases
• Why is helium used to fill balloons and airships?

  Because it is light and non-flammable
• How do the boiling points of noble gases change in relation to their position in Group 0?

  Boiling points decrease as you go down
• What is the significance of the inert nature of noble gases in industrial processes?

  It prevents unwanted chemical reactions
• What color light does neon emit when energized?

  Bright red-orange
• What are the applications of noble gases?

  • Helium: Fills balloons and airships
  • Neon: Used in neon signs
  • Argon: Protects metals in welding
  • Krypton: Found in high-intensity lights
  • Xenon: Used in flash lamps and medical imaging
• What are noble gases also known as?

  Inert gases
• What makes noble gases very stable?

  Full electron shells
• What type of light does krypton produce?

  Brilliant white light
• How does argon contribute to welding processes?

  It provides an inert atmosphere to protect metals
• In what applications is xenon used?

  In flash lamps and medical imaging
• What prevents noble gases from forming chemical compounds?

  They do not want to gain or lose electrons
• What are the key physical properties of noble gases?

  • Colorless
  • Odorless
  • Tasteless
  • Monoatomic
  • Low boiling points
• What does the reactivity of xenon indicate about noble gases?

  It shows a slight exception to non-reactivity
• How do the atoms of noble gases behave in terms of electrons?

  They do not want to gain or lose electrons
• What causes noble gases to have exceptionally low boiling points?

  Weak intermolecular forces between their atoms
• How does helium behave in balloons compared to oxygen?

  Helium remains inert, oxygen reacts
• Under what conditions can larger noble gases like xenon react?

  Under special conditions