The Most Electronegative Atom

List of elements ordered by electronegativity is listed in the table below with atomic number, chemical symbol and electronegativity value. To list the elements order by electronegativity, click on the table headers. You can print the list of elements by hitting the print button below.

The Most Electronegative Atom Is

Electronegativity For Hydrogen

The element which has the highest electronegativity value is Fluorine with 3.98 χ. And the element which has the lowest electronegativity value is Francium in 0.7 χ.

Table Of Electronegativity

Atomic Number	Chemical Symbol	Element Name	Electronegativity χ
9	F	Fluorine	3.98
8	O	Oxygen	3.44
17	Cl	Chlorine	3.16
7	N	Nitrogen	3.04
36	Kr	Krypton	3
35	Br	Bromine	2.96
53	I	Iodine	2.66
54	Xe	Xenon	2.6
16	S	Sulfur	2.58
6	C	Carbon	2.55
34	Se	Selenium	2.55
79	Au	Gold	2.54
74	W	Tungsten	2.36
82	Pb	Lead	2.33
78	Pt	Platinum	2.28
45	Rh	Rhodium	2.28
44	Ru	Ruthenium	2.2
46	Pd	Palladium	2.2
76	Os	Osmium	2.2
85	At	Astatine	2.2
77	Ir	Iridium	2.2
1	H	Hydrogen	2.2
15	P	Phosphorus	2.19
33	As	Arsenic	2.18
42	Mo	Molybdenum	2.16
52	Te	Tellurium	2.1
51	Sb	Antimony	2.05
5	B	Boron	2.04
83	Bi	Bismuth	2.02
32	Ge	Germanium	2.01
84	Po	Polonium	2
80	Hg	Mercury	2
50	Sn	Tin	1.96
47	Ag	Silver	1.93
27	Co	Cobalt	1.91
75	Re	Rhenium	1.9
14	Si	Silicon	1.9
43	Tc	Technetium	1.9
29	Cu	Copper	1.9
28	Ni	Nickel	1.88
26	Fe	Iron	1.83
31	Ga	Gallium	1.81
49	In	Indium	1.78
48	Cd	Cadmium	1.69
24	Cr	Chromium	1.66
30	Zn	Zinc	1.65
23	V	Vanadium	1.63
81	Tl	Thallium	1.62
13	Al	Aluminium	1.61
41	Nb	Niobium	1.6
4	Be	Beryllium	1.57
25	Mn	Manganese	1.55
22	Ti	Titanium	1.54
91	Pa	Protactinium	1.5
73	Ta	Tantalum	1.5
92	U	Uranium	1.38
93	Np	Neptunium	1.36
21	Sc	Scandium	1.36
40	Zr	Zirconium	1.33
12	Mg	Magnesium	1.31
72	Hf	Hafnium	1.3
99	Es	Einsteinium	1.3
100	Fm	Fermium	1.3
98	Cf	Californium	1.3
101	Md	Mendelevium	1.3
102	No	Nobelium	1.3
103	Lr	Lawrencium	1.3
97	Bk	Berkelium	1.3
96	Cm	Curium	1.3
95	Am	Americium	1.3
90	Th	Thorium	1.3
94	Pu	Plutonium	1.28
71	Lu	Lutetium	1.27
69	Tm	Thulium	1.25
68	Er	Erbium	1.24
67	Ho	Holmium	1.23
66	Dy	Dysprosium	1.22
39	Y	Yttrium	1.22
64	Gd	Gadolinium	1.2
62	Sm	Samarium	1.17
60	Nd	Neodymium	1.14
59	Pr	Praseodymium	1.13
58	Ce	Cerium	1.12
57	La	Lanthanum	1.1
89	Ac	Actinium	1.1
20	Ca	Calcium	1
3	Li	Lithium	0.98
38	Sr	Strontium	0.95
11	Na	Sodium	0.93
88	Ra	Radium	0.9
56	Ba	Barium	0.89
19	K	Potassium	0.82
37	Rb	Rubidium	0.82
55	Cs	Caesium	0.79
87	Fr	Francium	0.7

Electronegativity is a chemical property which describes how well an atom can attract an electron to itself. Values for electronegativity run from 0 to 4. Electronegativity is used to predict whether a bond between atoms will be ionic or covalent. It can also be used to predict if the resulting molecule will be polar or nonpolar. Electronegativity is the measure of an atom's ability to attract an electron from another atom. Highly electronegative elements are very reactive due to this tendency to attract electrons. Non-metals are more likely to be electronegative than metals. Oxygen is much more electronegative than hydrogen, which suggests that hydrogen should be the central atom, but the hydrogens are clearly peripheral atoms. This stems from the limitation that hydrogen can only form one sigma bond. That being said, hydrogen has also been found in unconventional bonding arrangements (see diborane for an example). Fluorine is the most electronegative element. Fluorine has an electronegativity of 3.98 on the Pauling Electronegativity Scale and a valence of 1. A fluorine atom needs one electron to fill its outer electron shell and achieve stability, which is why free fluorine exists as the F - ion.