What is the atomic number of nitrogen?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 7
Other Information-
- 7 is the atomic number of nitrogen.
- Nitrogen is a chemical element with the symbol N.
- It is a gas at normal temperature and pressure and about 78% of the Earth's atmosphere is nitrogen.
- It was discovered in 1773 by the Scottish scientist Daniel Rutherford.
- Its two stable isotopes, mass numbers 14, 15 are known and three temporary isotopes have also been made.