Answers

2015-02-03T13:52:29+05:30
Silicons are the Semi metals or so called Metalloids..


Bhor's Atomic Therory

> the electrons move in orbits of fixed size and energy
>
energy of an electron depends on the size of the orbit and is lower for smaller       orbits
atom will be completely stable in the state with the smallest orbit, since there is     no orbit of lower energy into which the electron can jump
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