Question

We all know that uncertainty principle shows us that we cannot measure the position and momentum of an electron simultaneously. Still when I say Sodium, it means it has atomic number 11,i.e 11 electrons distributed in its atom. HOW COME SCIENTISTS SEE THESE ELECTRONS?

Answer 1

Answer:

In the Bohr model of the atom the energy (thus its momentum) of the electron and the radius of its orbit (thus its position) are precisely defined quantities. This is a direct violation of the Uncertainty Principle.

Answer 2

Answer:

Scientists , didn't saw electrons but the chemical phenomenon govern the presence of 11 electrons in a Na atom .

It is interesting to note that it is usual in chemistry that a law is broken , as you will study different aspects of chemistry, you will see violation of laws because of exceptions.

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