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Questions and Answers
Which of the following are considered noble gases? (Select all that apply)
Which of the following are considered noble gases? (Select all that apply)
What is the chemical symbol for Helium?
What is the chemical symbol for Helium?
He
What is the atomic number of Neon?
What is the atomic number of Neon?
10
What is the atomic number and symbol of Argon?
What is the atomic number and symbol of Argon?
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What is Krypton classified as?
What is Krypton classified as?
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What distinguishes Xenon among noble gases?
What distinguishes Xenon among noble gases?
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What is the nature of Radon gas?
What is the nature of Radon gas?
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Study Notes
Noble Gases Overview
- Noble gases are located in Group 0 (18) of the periodic table.
- Comprise six elements: helium, neon, argon, krypton, xenon, and radon.
- Initially considered completely unreactive, but compounds of xenon, krypton, and radon are now known.
Helium (He)
- Symbol: He; Atomic number: 2.
- Characterized as a colorless, odorless, tasteless, and non-toxic gas.
- Monatomic and inert, making it the lightest noble gas.
Neon (Ne)
- Symbol: Ne; Atomic number: 10.
- Colorless and odorless gas under standard conditions.
- Approximately two-thirds the density of air, commonly used in lighting.
Argon (Ar)
- Symbol: Ar; Atomic number: 18.
- A noble gas found in Group 18 of the periodic table.
- Colorless and inert, often employed in welding and other applications.
Krypton (Kr)
- Symbol: Kr; Atomic number: 36.
- Member of Group 18, similar in properties to other noble gases.
- Utilized in certain light sources and photography.
Xenon (Xe)
- Symbol: Xe; Atomic number: 54.
- Colorless and dense, occurs in trace amounts in Earth's atmosphere.
- Known for its use in high-intensity discharge lamps and other applications.
Radon (Rn)
- Symbol: Rn; Atomic number: 86.
- A radioactive noble gas, colorless, odorless, and tasteless.
- An indirect decay product of uranium and thorium; poses health risks due to radioactivity.
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Test your knowledge on noble gases with these flashcards. Learn definitions and properties of elements like helium, neon, argon, and more from Group 0 of the periodic table. Perfect for chemistry enthusiasts and students.
