Question

How to determine the electronic configuration of an element by the orbitals s, p, d and f ?​

Answer 1

Answer:

The distribution of electrons in various molecular orbitals in a molecule is called the electronic configuration

S block

The elements of Group 1 and Group 2 of the modern periodic table are called S block elements. The general outer electronic configuration of s block elements is ns(1-2).

Example:

Hydrogen and Helium with electronic configuration 1s1 and 1s2

P block

P block elements are in which the last electron enters any of the three p-orbitals of their respective shells. The general electronic configuration of p-block elements is ns2np1-6 except for Helium (He).

Examples

Boron -1s22s22p1

Neon -1s22s22p6

D-block

D block elements are the elements that can be found from the third group to the twelfth group of the modern periodic table. The valence electrons of these elements fall under the d orbital. D block elements are also referred to as transition elements or transition metals. The general outer electronic configuration of d block elements is (n−1)d(1−10)ns(0−2).

Examples

Scandium [Ar]3d14s2

zinc [Ar]3d104s2

f block

Elements whose f orbital getting filled up by electrons are called f block elements. These elements have electrons, (1 to 14) in the f orbital, (0 to 1) in the d orbital of the penultimate energy level and in the outermost’s orbital. The general outer electronic configuration of f block elements is (n−2)f(0−14)(n−1)d(0−1)ns2.

Explanation:

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