Asked Oct 24, 2019

13. Draw orbital diagrams for atoms with the following electron configurations:

a. 1s2 2s2 2p5

b. 1s2 2s2 2p6 3s2 3p3

c. 1s2 2s2 2p6 3s2 3p6 4s2 3d7



Expert Answer

Step 1

Orbital diagrams are a way of representing electrons present in an atom by the means of depicting the orbitals.

The rules that are followed are Aufbau principle (It states that electrons are filled in orbitals of increasing energy); Pauli's exclusion priciple (It states that no two electrons in an orbital have same spin) and Hund's rule of maximum multiplicity (It states that while pairing the electrons in degenerate orbitals, all such orbitals must have single electron in them with same spin).

Step 2

a) 1s2s2p5

As per electronic configuration, element is Fluorine, the orbital diagram is as below:

Here, second shell is valence shell and electrons present in 2s and 2p are valence electrons.

Step 3

b) 1s2 2s2 2p6 3s2 3p3

Element is Phosphorus, orbital diagram is as below:

Here, shell 3 is valence shell and electrons in 3s and 3p are valence electrons


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