15 May Periodic Table
The periodic table is regarded as the most important aspect of chemistry. From the very beginning the table is explained for the students to understand the concepts better. Special chemistry tuition are conducted to give a clearer understanding of the module. Periodic table is a tabular display of chemical elements arranged based on the atomic number, electron configuration and chemical properties. There are seven rows in the table, termed as periods. Periods have metals on the left and non-metals on the right. Also known as the periodic table of elements, the organization is such that it is easy for any layman who has basic knowledge on chemistry to understand the unique properties of individual elements. The periodic table of elements include names, atomic number, symbol and mass. It is color coded for easier reference by students and researchers. Each row and column have specific characteristics. Each element is placed in its specific location due to its atomic structure.
The number of protons and electrons in the element are indicated by the atomic number. The letters in each block represent the atomic symbol. Group numbers are placed above the periodic table. Elements in the same group have the same number of electrons which shows that they have similar properties. Periodic numbers are the numbers placed beside the periodic table. Atomic radius tends to decrease as we move left across a period. This happens because each successive element has an added electron and proton. It is to be noted that while moving from left to right across a period, the more we escalate towards the right, the more energy is required to remove an electron because they become more tightly bound. The periodic table explains the number of protons, neutrons and electrons, the mass, atomic number, mass number, valence electrons etc.