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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 'Making toast'.

Write simple instructions on 'Making toast'.

Making toast is a very easy process. First, we should switch the toaster on. Then, if the loaf is not sliced, we have to slice it with a sharp knife. Next, we have to put a slice in the toaster, brown both sides.  When this is done, we must switch the toaster off. Then, we have to take out the toast, put butter on it with a knife, and then spread it all over. Finally, sugar can be put on the toast if needed and it is now ready for eating.

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