(a)(i) List the quantum number that are assigned to an electron in an atom.

(ii) What is the maximum number of electrons that can occupy the 3d orbital?

 

(b) An element represented as P has the following electronic configuration: 1s\(^2\)2s\(^2\)2p\(^6\)2s\(^2\)

(i) Write the electronic configuration of the ion of P.

(ii) Without identifying P, write the likely formula of its chloride.

(iii) State with reason, whether P will be a good oxidizing or reducing agent.

 

(c)(i) What is electron affinity?

(ii) Explain briefly why ammonia can precipitate in dative bonding.

 

(d)(i) If an element in Group IV loses an alpha particle, to which group would the product belong?

(ii) Two equally toxic substances X and Y which decay to non-toxic products, were absorbed through the skin. If their half-lives are 8 minutes and 2 months respectively, which of them constitutes the greater health hazard? Explain your answer