The most abundant VA group element in the earth's crust is 

Options

A. Nitrogen
B. Phosphorus
C. Arsenic
D. Bismuth

Answer

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

### Step 1: Identify the VA Group Elements
The VA group elements, also known as Group 15 elements, include:
- Nitrogen (N)
- Phosphorus (P)
- Arsenic (As)
- Antimony (Sb)
- Bismuth (Bi)

### Step 2: Understand the Context
The question specifies the Earth's crust, which is different from the atmosphere. In the atmosphere, nitrogen is the most abundant, but we need to focus on the Earth's crust.

### Step 3: Compare the Abundance of VA Group Elements
Now, we need to consider the abundance of these elements in the Earth's crust:
- Phosphorus is known to be present in various minerals and is essential for life.
- Nitrogen, while abundant in the atmosphere, is less common in the crust.
- Arsenic, antimony, and bismuth are present but in much smaller quantities compared to phosphorus.

### Step 4: Conclusion
Based on the comparison, phosphorus is the most abundant VA group element in the Earth's crust.

### Final Answer
The most abundant VA group element in the Earth's crust is **Phosphorus (P)**.

---