Question

Currently, the fourth most abundant chemical element in the universe is:

• A. Hydrogen
• B. Helium
• C. Oxygen
• D. Carbon

Hint:

Element abundance order:
H > He > O > C > Ne > Fe.
Carbon is the fourth most abundant.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
The abundance of elements in the universe is known.
It is based on stellar nucleosynthesis.

Step 2: Key Formula or Approach:
No specific formula.
Need to know the abundance of elements in the universe.

Step 3: Detailed Explanation:
The order of abundance of elements in the universe is:
1. Hydrogen (H)
2. Helium (He)
3. Oxygen (O)
4. Carbon (C)
Thus, carbon is the fourth most abundant element.

Step 4: Final Answer:
Carbon is the fourth most abundant element in the universe.
Hence, the correct option is (D).