Test your knowledge of atomic models, atomic number and calculating atomic mass. QUIZ: The periodic table This interactive quiz is for GCSE Chemistry (single science) students studying the periodic ...
2.1 Need to classify elements 2.2 Genesis of Periodic Classification 2.3 Modern periodic law and present form of the periodic table 2.4 Nomenclature of elements with atomic number greater than100 2.5 ...
Every living organism uses tiny quantities of metals to carry out biological functions, including breathing, transcribing DNA, turning food into energy, or any number of essential life processes.