Question 11
Atomic StructureFour elements P, Q, R and S have atomic numbers of 4, 10, 12 and 14 respectively. Which of these elements is a noble gas?
- A.P
- B.Q
- C.R
- D.S
Show the answer and explanation
Answer: B (Q)
Explanation
Element 10 (neon) has the configuration 2, 8, a full outer shell, so it is a noble gas.