“X” “Q”s ME 1000 “Alphabetically, it’s last of the noble gases”
The Correct Answer and Explanation is :
The correct answer is xenon.
Explanation:
- What are noble gases?
Noble gases are a group of chemical elements found in Group 18 of the periodic table. They are characterized by having full valence electron shells, making them highly stable and non-reactive under standard conditions. The noble gases include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). - Why is xenon alphabetically the last?
When listing the noble gases alphabetically, the order is:
- Argon
- Helium
- Krypton
- Neon
- Radon
- Xenon As you can see, “xenon” comes last alphabetically, as it starts with the letter “X,” which is the last letter of the alphabet among the noble gases.
- Properties of Xenon:
Xenon is a colorless, odorless, and tasteless gas under normal conditions. Although it’s inert, xenon can form compounds with other elements under certain extreme conditions, particularly with fluorine and oxygen. These properties make xenon unique among the noble gases. - Uses of Xenon:
Xenon has several applications, such as in high-intensity lamps (like xenon arc lamps used in cinema projectors and car headlights), in medical imaging (xenon gas is used in certain types of MRI), and in space exploration (xenon is used as a propellant in ion thrusters for spacecraft). - Why “Q” in the question?
The letter “Q” is often used in crosswords or trivia questions as a playful hint for “questions” or “queries.” The number “1000” likely refers to the difficulty or point value in the context of a quiz game.
Hence, xenon is both the answer and an example of the noble gases with practical importance in science and technology.