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Bohrs Atomic Model

Bohrs Atomic Model Scientist Neils Bohr gave some corrections to Rutherford's atomic model in 1913. This corrected model is called the Bohr's atomic model. The main postulates of this model are - a) The electron moves around the nucleus in a circular motion, about an axis. This circular motion is called an energy level or orbit. They are also known as the shell or permanent orbit or principal energy level. Electrons do not absorb or emit any energy when they revolve these fixed orbits. If we express the permanent orbit as n, then n = 1, 2, 3, 4, etc.  In other words, if n = 1, the principal energy level is K,  when n = 2, L is the principal energy level,  when n = 3, M is the principal energy level,  when n = 4, N is the principal energy level, etc. b) According to Bohr's model, the angular momentum of an electron in an energy level is mvr =  nh / 2𝜋 . Here, m = the mass of the electron (9.11×10 -31  kg) r = the radius of the orbit that the electron follows v = the veloc

Write simple instructions on 'How to make Oral Saline'.

Write simple instructions on 'How to make Oral Saline'.

To make Oral Saline is an easy task. First, I have to take one and a half liters of water. Then, I must boil it for at least half an hour. Then, it will be one liter and then I have to pour it into a clean pot. I let the water cool down completely. Then, I wash my hand in clean water, and take a handful of sugar and drop it into the cool water. After that, I must add one pinch of salt to three fingers. finally, I have to stir the compound well. When the salt and sugar dissolve completely the Oral Saline is made. This is a life-saving drug for cholera and diarrhea patients for those who suffer from dehydration.

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