KNEC KCSE Past Papers 2017 Chemistry Paper 1 (233/1)

KNEC KCSE Past Papers 2017 Chemistry Paper 1 (233/1) Kenya Certificate of Secondary Education 2017 Chemistry paper 1 1. Table 1 shows the atomic numbers and the first ionisation energies of three elements. The letters are not actual symbols of the elements. Use it to answer the questions that follow. (a) Explain the trend in … Read more