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    • It is about the quantum number

      1. They are chemistrical proper noun. n is on behalf of Principal quantum number. It decides the orbital's size and the energy increases by the distance from the nucleus increases. And the value of n is a positive integer(it doesn...

    • What does it mean that the ..?

      The tangent function is one of trigonometric functions. The graph of tangent function is symmetrical at the orgin i.e. at the (0, 0) f(x)=tanx, x isn't equal to π/2+kπ let y is belong to real number. it's graph is as follows. http://teacher...