(a) State (i) Pauli's Excusion principle; (ii) Hund's rule of maximum multiplicity. (b)(i) Write the electronic configuration of each of the following ions ...

 (a) State (i) Pauli's Excusion principle;

(ii) Hund's rule of maximum multiplicity.

(b)(i) Write the electronic configuration of each of the following ions of copper: I. Cu\(_+\) II. Cu\(_{(2+)}\) [\(_{29}Cu\)]

(ii) Give the number of unpaired-electrons in each of the ions in (b)(i) above.

(iii) State the type of reaction represented by the following equation:

2Cu\(^+_{(aq)}\) \(\to\) Cu\(^{2+}_{(aq)}\)  + Cu\(_{(s)}\)

(iv) Write the formula of one compound of Cu+.

(c)(i) Name the type  of radiation that will I. penetrate lead block; II. be stopped by thin paper

(ii) Give the charge on each of the radiations mentioned in I(c)(i) above.

(iii) What term is used to describe each of the following nuclear processes?

I. Combination of two lighter nuclei to form a heavy nucleus II. Splitting of a heavy nucleus into two or more lighter nuclei

III. Time required for one-half of the atoms of a radioactive substance to decay.

(d) Arrange the following ions in order of increasing size. Give a reason for your answer in each case. I. Li\(^{+}\), K\(^{+}\), Na\(^{+}\); II. O\(^{2-}\), F\(^{-}\), N\(^{3-}\)

(e) Determine the percentage composition of phosphorus and oxygen in phosphorus (V) oxide [ P = 31, O = 16 ]