(a)(i) Mention two types of bond present in the ammonium ion

(ii) Give three characteristic properties of electrovalent compounds

(iii) State. two differences between chemical reactions and nuclear reactions

 

(b) Two elements represented by the letters and Y have atomic numbers 9 and 12 respectively.

(i) Write the electronic configuration of X using the s,p,d, notation

(ii) To what group does Y belong in the periodic table?

(iii) Write the formula of the compound formed when X copibines with Y

(iv) Explain wily X is a good oxidizing agent

(v) State with reason, whether Y would be expected to form acidic or basic oxide

 

(c) Balance the following nuclear equations and identify the particles represented by X and Y.

(i) \(^{14}_6C\) \(\to\) X + \(^{14}_7N\)

(ii) \(^{14}_7C\)

Y \(\to\) \(^1_1H\) + \(^{17}_8O\)

 

(d) Consider the following list of substances: Carbon (IV) oxide, hydrogen, zinc, sulphier, methane, potassium and mercury. From the list above, state the:

(i) elements that are metals

(ii) compounds that are gases at room temperature

(iii) non-metals that are solids at room temperature