(a) Three elements A, B and C have atomic numbers 8, 11 and 12 respectively. (i) Write the formula of the compound formed by the chemical combination of A a...

(a) Three elements A, B and C have atomic numbers 8, 11 and 12 respectively.

(i) Write the formula of the compound formed by the chemical combination of A and B.

(ii) State which of the three elements belong(s) to the s-block of the Periodic Table. Give reason for your answer:

(b) List the component elements of bleaching powder.