RRB NTPC · Question 38
Which element has the atomic number 3? A. Boron B. Lithium C. Beryllium D. Sodium
Show answer & explanation
Answer: (D) B
Explanation
Lithium (Li) has atomic number 3.
RRB NTPC · Question 38
Answer: (D) B
Lithium (Li) has atomic number 3.