1.9 Group 0

• Noble gases have eight electrons in their outer shell, except helium, which has two.


  True
• Noble gases like neon and argon have eight electrons in their outer shells
• Noble gases are chemically unreactive because of their stable electron configuration
• What is the electron configuration of neon?

  1s^2 2s^2 2p^6
• Noble gases are chemically inert because they have full outer electron shells
• The electron configuration of an atom describes the arrangement of its electrons in shells
• Match the noble gas with its chemical symbol:

  Helium ↔️ He

  Neon ↔️ Ne

  Argon ↔️ Ar

  Krypton ↔️ Kr

  Xenon ↔️ Xe
• What is the electron configuration of helium?

  1s^2
• At room temperature, noble gases exist as monatomic
• Noble gases exist as monatomic gases at room temperature due to their stable electron configurations.


  True
• Noble gases, also known as inert gases, are located in Group 0
• What is the electron configuration of helium?

  1s^2
• The full outer electron shell of noble gases prevents them from forming chemical bonds.


  True
• Noble gases are chemically unreactive due to their stable electron configuration
• Arrange the noble gases in order of increasing atomic number:

  1️⃣ Helium (He)

  2️⃣ Neon (Ne)

  3️⃣ Argon (Ar)
• What is the outer electron configuration of neon?

  2s^2 2p^6
• Noble gases have a full outer shell configuration, making them stable.


  True
• Why do noble gases exist as monatomic gases at room temperature?

  Stable electron configurations
• In which group of the periodic table are noble gases located?

  Group 0
• Arrange the noble gases in order of increasing boiling points:

  1️⃣ Helium

  2️⃣ Neon

  3️⃣ Argon

  4️⃣ Krypton

  5️⃣ Xenon

  6️⃣ Radon
• Match each noble gas with its primary use:

  Helium ↔️ Cryogenics

  Neon ↔️ Neon signs

  Argon ↔️ Protective atmospheres

  Xenon ↔️ Anesthetics
• Group 0 elements are located in the rightmost column of the periodic
• What is the atomic number of argon?

  18
• Order the noble gases by increasing atomic number:

  1️⃣ Helium

  2️⃣ Neon

  3️⃣ Argon
• Noble gases are reactive at room temperature.

  False
• Noble gases do not gain, lose, or share electrons due to their full outer electron shells.


  True
• Noble gases are exceptionally stable and non-reactive because they do not easily gain, lose, or share electrons
• What is the boiling point of helium in degrees Celsius?

  -269 °C
• Noble gases are chemically inert due to their stable electron configurations
• What is the outer electron configuration of argon?

  1s^2 2s^2 2p^6 3s^2 3p^6
• What is the name given to Group 0 elements in the periodic table?

  Noble gases
• The full outer electron shell of noble gases makes them exceptionally stable.


  True
• Argon has 8 electrons in its outer 3s and 3p shells.
• Noble gases are chemically inert due to their full outer electron shells.
• Match each noble gas with its electron configuration:

  Helium ↔️ 1s^2

  Neon ↔️ 1s^2 2s^2 2p^6

  Argon ↔️ 1s^2 2s^2 2p^6 3s^2 3p^6
• The density of noble gases increases due to increasing atomic mass and volume.
• Using nitrogen-hydrogen blends in welding reduces reliance on argon.


  True
• What is the boiling point of helium in degrees Celsius?

  -269
• Arrange the noble gases in order of increasing boiling point:

  1️⃣ Helium (He)

  2️⃣ Neon (Ne)

  3️⃣ Argon (Ar)
• Noble gases form molecules at room temperature.

  False