(a) The Uncertainty principle states it is not possible to determine the position and momentum of an electron in the atom simultaneously.
(b) This statement contradicts Pauli exclusion principle. It is not valid.
1. Which of the following principles is the periodic table mainly based on?
(a) It is based on the uncertainty principle
(b) All electrons in an atom must have the same set of quantum numbers.
(c) No two electrons in an atom can have the same set of quantum numbers.
(d) All electrons in an atom are in orbitals having the same energy
(e) Energy is conserved in all interactions.
2. Give an example to support your choice in Question 1.
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