Electronic Configurations of All Elements

Electronic configuration depending on s, p, d and f orbital.

S-Block

Subshell– S-orbitals 2 electron

Group– Alkali Metals and alkaline earth metals

Configuration– ns¹ (Group 1) and ns² ( Group 2 ), Where n = Energy level

P-Block

Subshell– p-orbitals 6 electron

Group– 13 to 18 group

Configuration– ns²np^1-6

d-Block

Subshell– d-orbitals 10 electron

Group– 3 to 12 group (Transition Metals)

Configuration– (n-1)d^1-10 s^1-2

f-Block

Subshell– d-orbitals 14 electron

Group- Lanthanides(Z 58 to 71) and Actinides (Z 90 to 103)

Configuration-(n-1)f^1-14 (n-1)d^1-10 s^1-2

Principles for Electron Configurations

Aufbau Principle– Electrons fill orbitals from lowest to highest energy (1s → 2s → 2p → 3s → 3p → 3d → 4s, etc.).

Pauli Exclusion Principle: Each orbital holds up to 2 electrons with opposite spins.

Hund’s Rule: Electrons fill degenerate orbitals (e.g., p, d, f) singly with parallel spins before pairing.

Exceptions Elements like Cr, Cu, Mo, and some f-block elements deviate for stability (half-filled or fully filled subshells).

Atomic Number	Symbol	Element Name	Electronic Configuration
1	H	Hydrogen	1s1
2	He	Helium	1s2
3	Li	Lithium	1s2 2s1 OR [He] 2s1
4	Be	Beryllium	1s2 2s2 OR [He] 2s2
5	B	Boron	1s2 2s2 2p1 OR [He] 2s2 2p1
6	C	Carbon	1s2 2s2 2p2 OR[He] 2s2 2p2
7	N	Nitrogen	1s2 2s2 2p3 OR[He] 2s2 2p3
8	O	Oxygen	1s2 2s2 2p4 OR [He] 2s2 2p4
9	F	Fluorine	1s2 2s2 2p5 OR [He] 2s2 2p5
10	Ne	Neon	1s2 2s2 2p6 OR [He] 2s2 2p6
11	Na	Sodium	1s2 2s2 2p6 3s1 OR [Ne] 3s1
12	Mg	Magnesium	1s2 2s2 2p6 3s2 OR [Ne] 3s2
13	Al	Aluminum	1s2 2s2 2p6 3s2 3p1 OR [Ne] 3s2 3p1
14	Si	Silicon	1s2 2s2 2p6 3s2 3p2 OR [Ne] 3s2 3p2
15	P	Phosphorus	1s2 2s2 2p6 3s2 3p3 OR [Ne] 3s2 3p3
16	S	Sulfur	1s2 2s2 2p6 3s2 3p4 OR [Ne] 3s2 3p4
17	Cl	Chlorine	1s2 2s2 2p6 3s2 3p5 OR [Ne] 3s2 3p5
18	Ar	Argon	1s2 2s2 2p6 3s2 3p6 OR [Ne] 3s2 3p6
19	K	Potassium	1s2 2s2 2p6 3s2 3p6 4s1 OR [Ar] 4s1
20	Ca	Calcium	1s2 2s2 2p6 3s2 3p6 4s2 OR [Ar] 4s2
21	Sc	Scandium	1s2 2s2 2p6 3s2 3p6 3d1 4s2 OR [Ar] 3d1 4s2
22	Ti	Titanium	1s2 2s2 2p6 3s2 3p6 3d2 4s2 OR [Ar] 3d2 4s2
23	V	Vanadium	1s2 2s2 2p6 3s2 3p6 3d3 4s2 OR [Ar] 3d3 4s2
24	Cr	Chromium	1s2 2s2 2p6 3s2 3p6 3d5 4s1 OR [Ar] 3d5 4s1
25	Mn	Manganese	1s2 2s2 2p6 3s2 3p6 3d5 4s1 OR[Ar] 3d5 4s2
26	Fe	Iron	1s2 2s2 2p6 3s2 3p6 3d6 4s2 OR [Ar] 3d6 4s2
27	Co	Cobalt	1s2 2s2 2p6 3s2 3p6 3d7 4s2 OR [Ar] 3d7 4s2
28	Ni	Nickel	1s2 2s2 2p6 3s2 3p6 3d8 4s2 OR [Ar] 3d8 4s2
29	Cu	Copper	1s2 2s2 2p6 3s2 3p6 3d10 4s1 OR [Ar] 3d10 4s1
30	Zn	Zinc	1s2 2s2 2p6 3s2 3p6 3d10 4s2 OR [Ar] 3d10 4s2
31	Ga	Gallium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p1 OR [Ar] 3d10 4s2 4p1
32	Ge	Germanium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p2 OR [Ar] 3d10 4s2 4p2
33	As	Arsenic	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p3 OR [Ar] 3d10 4s2 4p3
34	Se	Selenium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p4 OR [Ar] 3d10 4s2 4p4
35	Br	Bromine	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p5 OR [Ar] 3d10 4s2 4p5
36	Kr	Krypton	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 OR [Ar] 3d10 4s2 4p6
37	Rb	Rubidium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s1OR [Kr] 5s1
38	Sr	Strontium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 OR [Kr] 5s2
39	Y	Yttrium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d1 5s2 OR [Kr] 4d1 5s2
40	Zr	Zirconium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d2 5s2 OR [Kr] 4d2 5s2
41	Nb	Niobium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d4 5s1 OR [Kr] 4d4 5s1
42	Mo	Molybdenum	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d5 5s1 OR [Kr] 4d5 5s1
43	Tc	Technetium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d5 5s2 OR [Kr] 4d5 5s2
44	Ru	Ruthenium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d7 5s1 OR [Kr] 4d7 5s1
45	Rh	Rhodium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d8 5s1 OR [Kr] 4d8 5s1
46	Pd	Palladium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 OR [Kr] 4d10
47	Ag	Silver	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s1 OR [Kr] 4d10 5s1
48	Cd	Cadmium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 OR [Kr] 4d10 5s2
49	In	Indium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p1 OR [Kr] 4d10 5s2 5p1
50	Sn	Tin	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p2 OR [Kr] 4d10 5s2 5p2
51	Sb	Antimony	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p3 OR [Kr] 4d10 5s2 5p3
52	Te	Tellurium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p4 OR [Kr] 4d10 5s2 5p4
53	I	Iodine	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p5OR [Kr] 4d10 5s2 5p5
54	Xe	Xenon	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 OR [Kr] 4d10 5s2 5p6
55	Cs	Cesium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 6s1 OR [Xe] 6s1
56	Ba	Barium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 6s2 OR [Xe] 6s2
57	La	Lanthanum	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 5d1 6s2 OR [Xe] 5d1 6s2
58	Ce	Cerium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f1 5d1 6s2 OR [Xe] 4f1 5d1 6s2
59	Pr	Praseodymium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f3 6s2 OR [Xe] 4f3 6s2
60	Nd	Neodymium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f4 6s2 OR [Xe] 4f4 6s2
61	Pm	Promethium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f5 6s2 OR [Xe] 4f5 6s2
62	Sm	Samarium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f6 6s2 OR [Xe] 4f6 6s2
63	Eu	Europium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f7 6s2 OR [Xe] 4f7 6s2
64	Gd	Gadolinium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f7 3d1 6s2 OR [Xe] 4f7 5d1 6s2
65	Tb	Terbium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f9 6s2 OR [Xe] 4f9 6s2
66	Dy	Dysprosium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f10 6s2 OR [Xe] 4f10 6s2
67	Ho	Holmium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f11 6s2 OR [Xe] 4f11 6s2
68	Er	Erbium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f12 6s2 OR [Xe] 4f12 6s2
69	Tm	Thulium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f13 6s2 OR [Xe] 4f13 6s2
70	Yb	Ytterbium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 6s2 OR [Xe] 4f14 6s2
71	Lu	Lutetium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d1 6s2 OR [Xe] 4f14 5d1 6s2
72	Hf	Hafnium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d2 6s2 OR [Xe] 4f14 5d2 6s2
73	Ta	Tantalum	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d3 6s2 OR [Xe] 4f14 5d3 6s2
74	W	Tungsten	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d4 6s2 OR [Xe] 4f14 5d4 6s2
75	Re	Rhenium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d5 6s2 OR [Xe] 4f14 5d5 6s2
76	Os	Osmium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d6 6s2 OR [Xe] 4f14 5d6 6s2
77	Ir	Iridium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d7 6s2 OR [Xe] 4f14 5d7 6s2
78	Pt	Platinum	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d9 6s1 OR [Xe] 4f14 5d9 6s1
79	Au	Gold	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s1 OR [Xe] 4f14 5d10 6s1
80	Hg	Mercury	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 OR [Xe] 4f14 5d10 6s2
81	Tl	Thallium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p1 OR [Xe] 4f14 5d10 6s2 6p1
82	Pb	Lead	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p2 OR [Xe] 4f14 5d10 6s2 6p2
83	Bi	Bismuth	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p3 OR [Xe] 4f14 5d10 6s2 6p3
84	Po	Polonium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p4 OR [Xe] 4f14 5d10 6s2 6p4
85	At	Astatine	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p5 OR [Xe] 4f14 5d10 6s2 6p5
86	Rn	Radon	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 OR [Xe] 4f14 5d10 6s2 6p6
87	Fr	Francium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 7s1 OR [Rn] 7s1
88	Ra	Radium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 7s2 OR [Rn] 7s2
89	Ac	Actinium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 6d1 7s2 OR [Rn] 6d1 7s2
90	Th	Thorium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 6d2 7s2 OR [Rn] 6d2 7s2
91	Pa	Protactinium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f2 6d1 7s2 OR [Rn] 5f2 6d1 7s2
92	U	Uranium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f3 6d1 7s2 OR [Rn] 5f3 6d1 7s2
93	Np	Neptunium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f4 6d1 7s2 OR [Rn] 5f4 6d1 7s2
94	Pu	Plutonium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f6 7s2 OR [Rn] 5f6 7s2
95	Am	Americium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f7 7s2 OR [Rn] 5f7 7s2
96	Cm	Curium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f7 6d1 7s2 OR [Rn] 5f7 6d1 7s2
97	Bk	Berkelium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f9 7s2 OR [Rn] 5f9 7s2
98	Cf	Californium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f10 7s2 OR [Rn] 5f10 7s2
99	Es	Einsteinium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f11 7s2 OR [Rn] 5f11 7s2
100	Fm	Fermium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f12 7s2 OR [Rn] 5f12 7s2
101	Md	Mendelevium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f13 7s2 OR [Rn] 5f13 7s2
102	No	Nobelium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 7s2 OR [Rn] 5f14 7s2
103	Lr	Lawrencium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 7p1 7s2 OR [Rn] 5f14 7s2 7p1
104	Rf	Rutherfordium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d2 7s2 OR [Rn] 5f14 6d2 7s2
105	Db	Dubnium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d3 7s2 OR [Rn] 5f14 6d3 7s2
106	Sg	Seaborgium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d4 7s2 OR [Rn] 5f14 6d4 7s2
107	Bh	Bohrium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d5 7s2 OR [Rn] 5f14 6d5 7s2
108	Hs	Hassium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d6 7s2 OR [Rn] 5f14 6d6 7s2
109	Mt	Meitnerium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d7 7s2 OR [Rn] 5f14 6d7 7s2
110	Ds	Darmstadtium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d8 7s2 OR [Rn] 5f14 6d8 7s2
111	Rg	Roentgenium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s1 OR [Rn] 5f14 6d10 7s1
112	Cn	Copernicium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s2 OR [Rn] 5f14 6d10 7s2
113	Nh	Nihonium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s2 7p1 OR [Rn] 5f14 6d10 7s2 7p1
114	Fl	Flerovium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s2 7p2 OR [Rn] 5f14 6d10 7s2 7p2
115	Mc	Moscovium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s2 7p3 OR [Rn] 5f14 6d10 7s2 7p3
116	Lv	Livermorium	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s2 7p4 OR [Rn] 5f14 6d10 7s2 7p4
117	Ts	Tennessine	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s2 7p5 OR [Rn] 5f14 6d10 7s2 7p5
118	Og	Oganesson	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s2 7p6 OR [Rn] 5f14 6d10 7s2 7p6

List the electron configurations of all the noble gases.

The electronic configurations of the noble gases are listed below.

Helium (He) – 1s2

Neon (Ne) – [He]2s22p6

Argon (Ar) – [Ne]3s23p6

Krypton (Kr) – [Ar]3d104s24p6

Xenon (Xe) – [Kr]4d105s25p6

Radon (Rn) – [Xe]4f145d106s26p6