At airports, security officers fire neutrons at luggage to detect any hidden explosives. Most explosives contain nitrogen-14. When neutrons collide with nitrogen-14, a radioisotope, nitrogen-15, is formed and high-energy rays are given off. These rays, when detected, indicate the presence of explosives in the luggage.
(a) (i) Write down the electronic arrangement of an atom of nitrogen-15.
(ii) Using the Periodic Table, name another element that has similar chemical properties as nitrogen-15.
(iii) Explain your answer in (ii).
(b) State the similarity on the atomic structuees of nitrogen-15 and oxygen-16.