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Q: What is the atomic number of nitrogen?
  • A. 6
  • B. 8
  • C. 7
  • D. 5
Correct Answer: Option C - Nitrogen is a chemical element with the symbol N and atomic number 7. It constitutes 78% by volume of Earth's atmosphere. Nitrogen was discovered by Daniel Rutherford in 1772.
C. Nitrogen is a chemical element with the symbol N and atomic number 7. It constitutes 78% by volume of Earth's atmosphere. Nitrogen was discovered by Daniel Rutherford in 1772.

Explanations:

Nitrogen is a chemical element with the symbol N and atomic number 7. It constitutes 78% by volume of Earth's atmosphere. Nitrogen was discovered by Daniel Rutherford in 1772.