1.9 Group 0

• The boiling point of neon is -246.1°C
• The electron configuration of noble gases other than helium ends with s²p⁶
• The electron configuration of helium ends with s².


  True
• Which noble gas forms compounds with highly reactive elements?

  Krypton
• Noble gases exist as diatomic gases at room temperature.

  False
• Noble gases are unreactive because they have full outer electron shells.

  True
• Noble gases have complete outer electron shells, which makes them highly stable and unreactive
• Noble gases are highly unreactive due to their full outer electron shells
• Helium is used in cryogenics and for inflating balloons
• Noble gases exist as monatomic gases at room temperature and standard pressure.


  True
• Order the noble gases from lowest to highest atomic number.

  1️⃣ Helium (He)

  2️⃣ Neon (Ne)

  3️⃣ Argon (Ar)

  4️⃣ Krypton (Kr)

  5️⃣ Xenon (Xe)

  6️⃣ Radon (Rn)
• Why are noble gases unreactive?

  Full outer electron shells
• Noble gases are highly unreactive due to their full outer electron shells.
• Xenon is slightly more reactive than other noble gases and can form compounds with highly reactive elements.
• What are noble gases also known as?

  Group 0 elements
• What type of gas do noble gases exist as at room temperature and standard pressure?

  Monatomic
• Which noble gas forms no compounds due to its extreme unreactivity?

  Helium
• Match the noble gas with its primary application:

  Helium (He) ↔️ Cryogenics

  Neon (Ne) ↔️ Neon lighting

  Argon (Ar) ↔️ Welding

  Krypton (Kr) ↔️ High-intensity lighting
• The atomic number of helium is 2
• The electron configuration of helium ends with s²
• Noble gases exist as monatomic gases at room temperature.
• Helium forms compounds with other elements.

  False
• Order the noble gases by increasing boiling point:

  1️⃣ Helium

  2️⃣ Neon

  3️⃣ Argon

  4️⃣ Krypton

  5️⃣ Xenon

  6️⃣ Radon
• Group 0 elements are the noble gases, which include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon
• Match the noble gas with its atomic number:

  Helium (He) ↔️ 2

  Neon (Ne) ↔️ 10

  Argon (Ar) ↔️ 18

  Krypton (Kr) ↔️ 36

  Xenon (Xe) ↔️ 54

  Radon (Rn) ↔️ 86
• What is the electron configuration of helium (He)?

  1s^2
• Noble gases exist as monatomic gases at room temperature and standard pressure due to their full outer electron shells.

  True