The rare gas which is more abundant in atmosphere is

Options

A. `He`
B. `Xe`
C. `Kr`
D. `Ar`

Answer

To solve the question "The rare gas which is more abundant in atmosphere is," we can follow these steps:

### Step 1: Identify the Noble Gases
The noble gases include helium (He), neon (Ne), argon (Ar), krypton (Kr), and xenon (Xe).

### Step 2: Research the Abundance of Noble Gases in the Atmosphere
We need to find the percentage of each noble gas present in the Earth's atmosphere.

- Argon (Ar): Approximately 0.934%
- Neon (Ne): Approximately 0.0018%
- Helium (He): Approximately 0.0052%
- Krypton (Kr): Much less than 0.001%
- Xenon (Xe): Even less than krypton

### Step 3: Compare the Percentages
From the data:
- Argon is the most abundant noble gas at 0.934%.
- Neon, helium, krypton, and xenon are present in much smaller amounts.

### Step 4: Conclusion
Since argon has the highest percentage among the noble gases in the atmosphere, we conclude that the rare gas which is more abundant in the atmosphere is **argon**.

### Final Answer
The rare gas which is more abundant in the atmosphere is **argon**.

---