The most abundant element in the earth's atmosphere is

Options

A. `O_(2)`
B. `N_(2)`
C. `F_(2)`
D. `Ar`

Answer

To determine the most abundant element in the Earth's atmosphere, we can follow these steps:

### Step 1: Identify the main components of the atmosphere.
The atmosphere is primarily composed of several gases, with the most significant being nitrogen and oxygen.

**Hint:** Remember that the atmosphere consists of a mixture of gases, and you should focus on the major constituents.

### Step 2: Determine the percentage composition of these gases.
- Nitrogen (N₂) constitutes approximately 78% of the atmosphere.
- Oxygen (O₂) makes up about 21%.
- Other gases like argon (Ar) account for around 0.93%, with trace amounts of carbon dioxide, helium, methane, and others.

**Hint:** Look for the percentage values of the main gases in the atmosphere to compare their abundance.

### Step 3: Compare the percentages to find the most abundant element.
Since nitrogen is present at 78%, which is significantly higher than oxygen at 21% and argon at 0.93%, it is clear that nitrogen is the most abundant element in the atmosphere.

**Hint:** When comparing percentages, focus on the highest value to identify the most abundant element.

### Step 4: Conclude the answer.
Based on the information gathered, the most abundant element in the Earth's atmosphere is nitrogen.

**Final Answer:** Nitrogen (N₂) is the most abundant element in the Earth's atmosphere.

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