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describes the energies and Summative Assessment No. 2.1 IDENTIFICATION: Identify the terms being described. Write your answer on your answer sheet. AVOID ERASURES.
1. He discovered planetary model. 2. He discovered wave mechanical model.
3. It states that no two electrons in an atom can have the same set of the four quantum numbers.
4. It describes the order in which the electron enter the different orbitals and sublevels.
5. Write the electron configuration and box diagram of Chlorine​

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CHELLEGWENRUIZ25IN

1.physicist Ernest Rutherford.

2.Summary. Erwin Schrödinger proposed the quantum mechanical model of the atom, which treats electrons as matter waves.

3.pauli's Exclusion Principle states that no two electrons in the same atom can have identical values for all four of their quantum numbers.

4.the Madelung rule defines the order in which atomic orbitals are filled with electrons.

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