Question: What are Coinage Metals? Answer: Copper (Cu), Silver (Ag), and Gold (Au), which belong to Group IB (Group 11) of the periodic table, are collectively called Coinage Metals. They …
Quantum Number Quantum Number: The four quantities or numbers by which the size, shape, three-dimensional orientation (orbital spatial distribution) of an electron’s orbit or energy level in an atom, and …
Question: Which one is more acceptable between Rutherford’s atomic model and Bohr’s atomic model? Analyze. Major Postulates of Rutherford’s Atomic Model: a. There is a positively charged dense core at …
Bohr’s Atomic Model Based on Max Planck’s Quantum Theory of Radiation, Niels Bohr proposed his famous atomic model in 1913 to explain the stability of atoms and the origin of …
Rutherford’s Atomic Model An atom is an extremely small, spherical particle. It is divided into two main parts: (i) The Center or Nucleus (ii) The Extra-nuclear region (the part outside …
Atomic Models Shortly after John Dalton proposed his atomic theory, scientists became highly curious about the internal structure of the atom. Consequently, from 1897 to 1932 AD, various scientists conducted …
Food Canning Methods / Process 1. Sterilization: The cans or containers in which the food will be preserved, along with their lids, must be sterilized by boiling them in hot …
Food Canning Methods / Process Various types of fruits, fruit juices, jams, jellies, fish, and meat are preserved and marketed by canning. For this purpose, a few general steps are …
Question: Explain the mechanism of food preservation by sugar and common salt. Sugar and Salt: Both sugar and salt exert adverse effects on microorganisms. In food preservation, a concentration of …
Question: Explain the mechanism of decomposition (rancidity) of fats or lipids. The decomposition of lipids or fats occurs through a free-radical chain reaction triggered by atmospheric oxygen, a process known …