Reflections on term 1

This term was mainly about atoms . For the lesson on atoms, we learnt about chemical bonding, the covalent bond and ionic bond. Atoms bond in order to acquire stability.

Covalent bond is normally used for atoms of non-metal, and can be formed between atoms of same or different elements. Compounds that has covalent bond are known as covalent compounds. Covalent bonding is further split into 3 different categories,Single covalent, double covalent and triple covalent bond. These represent the number of pairs of shared electrons shared among the atoms.

Ionic bonding, on the other hand, is usually used for atoms of non-metals and metals. In an ionic bond,atoms(cation and anion) are lost and gained in order to achieve a duplet or octet structure.

Through chemical bonding, elements are combined and new uses for them are being invented. One very special thing is that chemical bonding might even be able to turn dangerous chemicals into compounds which is safe for us to use, and vice-versa .

Next, there is the electronic configuration and valency which was taught. The electronic configuration is a set of numbers given to an element in accordance to its periodic value, and the valency is the last digit from the electronic configuration

This term, my results were quite satisfactory, as science is always my weakest subject, so obtaining a B3 was very good for me. I could understand most of the concept taught but my careless mistakes prevented me from getting a better score. I would put in more effect in science, by doing more revisions and asking questions when in doubt. I hope to attain a better result in the end of year exams.