ASC S.5 CHEMI

iii. 2nd electron affinity of Sulphur …………………………………………………………………… …………………………………………………………………… (c) Explain the following observations 2 HOURS Topics: PERIODICITY, BONDING AND STRUCTURE, ALKENES, E-mail: atomsciencecentre@gmail.com ALKYNES 1 (a) Distinguish between ionization energy and electron affinity (1 mark) ……………………………………………………………………………………… ……………………………………………………………………………………… ……………………………………………………………………………………… (b) Write equations to illustrate (l mark@) i. 1st ionization energy of Al …………………………………………………………………….. .…………………………………………………………………… Location: Maganjo, Opp. Pr Deo’s church For; Science lessons, text books, stationery etc.. Contact: 07701467746/0787119579 ii. 3 rd ionization energy of Boron …………………………………………………………………… …………………………………………………………………… ii. The 1st electron affinity of most elements is always higher than the second (02 marks) ……………………………………………………………………………………… ……………………………………………………………………………………… ……………………………………………………………………………………… 2 (a) How does formation of a covalent bond differ from that of an ionic bond. (01 mks) ……………………………………………………………………………………… ……………………………………………………………………………………… ……………………………………………………………………………………… S.5 CHEMISTRY END OF JULY TEST EXAMS 2021 i. The value of ionization energy progressively increases as more electrons are removed from the atom (03 marks). ……………………………………………………………………………………… ……………………………………………………………………………………… ……………………………………………………………………………………… (b) Explain what is meant by the following terms;(01 mark@) 3 Draw and name the shapes of the followi