List Of Elements By Atomic Number

Information about List Of Elements By Atomic Number

A table of chemical elements ordered by atomic number and color coded according to type of element. Given is each element's name, element symbol, group and period, Chemical series, and atomic mass (or most stable isotope).

Chemical series of the periodic table

Alkali metals Alkaline earth metals Lanthanides Actinides Transition metals Poor metals Metalloids Nonmetals Halogens Noble gases

Z	Name	Sym	Period	Group	Chemical series	Mass (g/mol)
1	Hydrogen	H	1	1	Nonmetal	1.00794(7)^[1] ^[2] ^[3]
2	Helium	He	1	18	Noble gas	4.002602(2)<ref name="fn_2" /> <ref name="fn_4" />
3	Lithium	Li	2	1	Alkali metal	6.941(2)<ref name="fn_2" /> <ref name="fn_3" /> <ref name="fn_4" /> ^[4]
4	Beryllium	Be	2	2	Alkaline earth metal	9.012182(3)
5	Boron	B	2	13	Metalloid	10.811(7)<ref name="fn_2" /> <ref name="fn_3" /> <ref name="fn_4" />
6	Carbon	C	2	14	Nonmetal	12.0107(8)<ref name="fn_2" /> <ref name="fn_4" />
7	Nitrogen	N	2	15	Nonmetal	14.0067(2)<ref name="fn_2" /> <ref name="fn_4" />
8	Oxygen	O	2	16	Nonmetal	15.9994(3)<ref name="fn_2" /> <ref name="fn_4" />
9	Fluorine	F	2	17	Halogen	18.9984032(5)
10	Neon	Ne	2	18	Noble gas	20.1797(6)<ref name="fn_2" /> <ref name="fn_3" />
11	Sodium	Na	3	1	Alkali metal	22.98976928(2)
12	Magnesium	Mg	3	2	Alkaline earth metal	24.3050(6)
13	Aluminium	Al	3	13	Poor metal	26.9815386(8)
14	Silicon	Si	3	14	Metalloid	28.0855(3)<ref name="fn_4" />
15	Phosphorus	P	3	15	Nonmetal	30.973762(2)
16	Sulfur	S	3	16	Nonmetal	32.065(5)<ref name="fn_2" /> <ref name="fn_4" />
17	Chlorine	Cl	3	17	Halogen	35.453(2)<ref name="fn_2" /> <ref name="fn_3" /> <ref name="fn_4" />
18	Argon	Ar	3	18	Noble gas	39.948(1)<ref name="fn_2" /> <ref name="fn_4" />
19	Potassium	K	4	1	Alkali metal	39.0983(1)
20	Calcium	Ca	4	2	Alkaline earth metal	40.078(4)<ref name="fn_2" />
21	Scandium	Sc	4	3	Transition metal	44.955912(6)
22	Titanium	Ti	4	4	Transition metal	47.867(1)
23	Vanadium	V	4	5	Transition metal	50.9415(1)
24	Chromium	Cr	4	6	Transition metal	51.9961(6)
25	Manganese	Mn	4	7	Transition metal	54.938045(5)
26	Iron	Fe	4	8	Transition metal	55.845(2)
27	Cobalt	Co	4	9	Transition metal	58.933195(5)
28	Nickel	Ni	4	10	Transition metal	58.6934(2)
29	Copper	Cu	4	11	Transition metal	63.546(3)<ref name="fn_4" />
30	Zinc	Zn	4	12	Transition metal	65.409(4)
31	Gallium	Ga	4	13	Poor metal	69.723(1)
32	Germanium	Ge	4	14	Metalloid	72.64(1)
33	Arsenic	As	4	15	Metalloid	74.92160(2)
34	Selenium	Se	4	16	Nonmetal	78.96(3)<ref name="fn_4" />
35	Bromine	Br	4	17	Halogen	79.904(1)
36	Krypton	Kr	4	18	Noble gas	83.798(2)<ref name="fn_2" /> <ref name="fn_3" />
37	Rubidium	Rb	5	1	Alkali metal	85.4678(3)<ref name="fn_2" />
38	Strontium	Sr	5	2	Alkaline earth metal	87.62(1)<ref name="fn_2" /> <ref name="fn_4" />
39	Yttrium	Y	5	3	Transition metal	88.90585(2)
40	Zirconium	Zr	5	4	Transition metal	91.224(2)<ref name="fn_2" />
41	Niobium	Nb	5	5	Transition metal	92.906 38(2)
42	Molybdenum	Mo	5	6	Transition metal	95.94(2)<ref name="fn_2" />
43	Technetium	Tc	5	7	Transition metal	[98.9063]^[5]
44	Ruthenium	Ru	5	8	Transition metal	101.07(2)<ref name="fn_2" />
45	Rhodium	Rh	5	9	Transition metal	102.90550(2)
46	Palladium	Pd	5	10	Transition metal	106.42(1)<ref name="fn_2" />
47	Silver	Ag	5	11	Transition metal	107.8682(2)<ref name="fn_2" />
48	Cadmium	Cd	5	12	Transition metal	112.411(8)<ref name="fn_2" />
49	Indium	In	5	13	Poor metal	114.818(3)
50	Tin	Sn	5	14	Poor metal	118.710(7)<ref name="fn_2" />
51	Antimony	Sb	5	15	Metalloid	121.760(1)<ref name="fn_2" />
52	Tellurium	Te	5	16	Metalloid	127.60(3)<ref name="fn_2" />
53	Iodine	I	5	17	Halogen	126.90447(3)
54	Xenon	Xe	5	18	Noble gas	131.293(6)<ref name="fn_2" /> <ref name="fn_3" />
55	Caesium	Cs	6	1	Alkali metal	132.9054519(2)
56	Barium	Ba	6	2	Alkaline earth metal	137.327(7)
57	Lanthanum	La	6		Lanthanide	138.90547(7)<ref name="fn_2" />
58	Cerium	Ce	6		Lanthanide	140.116(1)<ref name="fn_2" />
59	Praseodymium	Pr	6		Lanthanide	140.90765(2)
60	Neodymium	Nd	6		Lanthanide	144.242(3)<ref name="fn_2" />
61	Promethium	Pm	6		Lanthanide	[146.9151]<ref name="fn_1" />
62	Samarium	Sm	6		Lanthanide	150.36(2)<ref name="fn_2" />
63	Europium	Eu	6		Lanthanide	151.964(1)<ref name="fn_2" />
64	Gadolinium	Gd	6		Lanthanide	157.25(3)<ref name="fn_2" />
65	Terbium	Tb	6		Lanthanide	158.92535(2)
66	Dysprosium	Dy	6		Lanthanide	162.500(1)<ref name="fn_2" />
67	Holmium	Ho	6		Lanthanide	164.93032(2)
68	Erbium	Er	6		Lanthanide	167.259(3)<ref name="fn_2" />
69	Thulium	Tm	6		Lanthanide	168.93421(2)
70	Ytterbium	Yb	6		Lanthanide	173.04(3)<ref name="fn_2" />
71	Lutetium	Lu	6	3	Lanthanide	174.967(1)<ref name="fn_2" />
72	Hafnium	Hf	6	4	Transition metal	178.49(2)
73	Tantalum	Ta	6	5	Transition metal	180.9479(1)
74	Tungsten	W	6	6	Transition metal	183.84(1)
75	Rhenium	Re	6	7	Transition metal	186.207(1)
76	Osmium	Os	6	8	Transition metal	190.23(3)<ref name="fn_2" />
77	Iridium	Ir	6	9	Transition metal	192.217(3)
78	Platinum	Pt	6	10	Transition metal	195.084(9)
79	Gold	Au	6	11	Transition metal	196.966569(4)
80	Mercury	Hg	6	12	Transition metal	200.59(2)
81	Thallium	Tl	6	13	Poor metal	204.3833(2)
82	Lead	Pb	6	14	Poor metal	207.2(1)<ref name="fn_2" /> <ref name="fn_4" />
83	Bismuth	Bi	6	15	Poor metal	208.98040(1)
84	Polonium	Po	6	16	Metalloid	[208.9824]<ref name="fn_1" />
85	Astatine	At	6	17	Halogen	[209.9871]<ref name="fn_1" />
86	Radon	Rn	6	18	Noble gas	[222.0176]<ref name="fn_1" />
87	Francium	Fr	7	1	Alkali metal	[223.0197]<ref name="fn_1" />
88	Radium	Ra	7	2	Alkaline earth metal	[226.0254]<ref name="fn_1" />
89	Actinium	Ac	7		Actinide	[227.0278]<ref name="fn_1" />
90	Thorium	Th	7		Actinide	232.03806(2)<ref name="fn_1" /> <ref name="fn_2" />
91	Protactinium	Pa	7		Actinide	231.03588(2)<ref name="fn_1" />
92	Uranium	U	7		Actinide	238.02891(3)<ref name="fn_1" /> <ref name="fn_2" /> <ref name="fn_3" />
93	Neptunium	Np	7		Actinide	[237.0482]<ref name="fn_1" />
94	Plutonium	Pu	7		Actinide	[244.0642]<ref name="fn_1" />
95	Americium	Am	7		Actinide	[243.0614]<ref name="fn_1" />
96	Curium	Cm	7		Actinide	[247.0703]<ref name="fn_1" />
97	Berkelium	Bk	7		Actinide	[247.0703]<ref name="fn_1" />
98	Californium	Cf	7		Actinide	[251.0796]<ref name="fn_1" />
99	Einsteinium	Es	7		Actinide	[252.0829]<ref name="fn_1" />
100	Fermium	Fm	7		Actinide	[257.0951]<ref name="fn_1" />
101	Mendelevium	Md	7		Actinide	[258.0986]<ref name="fn_1" />
102	Nobelium	No	7		Actinide	[259.1009]<ref name="fn_1" />
103	Lawrencium	Lr	7	3	Actinide	[260.1053]<ref name="fn_1" />
104	Rutherfordium	Rf	7	4	Transition metal	[261.1087]<ref name="fn_1" />
105	Dubnium	Db	7	5	Transition metal	[262.1138]<ref name="fn_1" />
106	Seaborgium	Sg	7	6	Transition metal	[263.1182]<ref name="fn_1" />
107	Bohrium	Bh	7	7	Transition metal	[262.1229]<ref name="fn_1" />
108	Hassium	Hs	7	8	Transition metal	[265]<ref name="fn_1" />
109	Meitnerium	Mt	7	9	Transition metal	[266]<ref name="fn_1" />
110	Darmstadtium	Ds	7	10	Transition metal	[269]<ref name="fn_1" />
111	Roentgenium	Rg	7	11	Transition metal	[272]<ref name="fn_1" />
112	Ununbium	Uub	7	12	Transition metal	[285]<ref name="fn_1" />
113	Ununtrium	Uut	7	13	Poor metal	[284]<ref name="fn_1" />
114	Ununquadium	Uuq	7	14	Poor metal	[289]<ref name="fn_1" />
115	Ununpentium	Uup	7	15	Poor metal	[288]<ref name="fn_1" />
116	Ununhexium	Uuh	7	16	Poor metal	[292]<ref name="fn_1" />
117	Ununseptium	Uus	7	17	Halogen	^[6]
118	Ununoctium	Uuo	7	18	Noble gas	[294]<ref name="fn_1" />

Chemical series of the periodic table

Alkali metals Alkaline earth metals Lanthanides Actinides Transition metals Poor metals Metalloids Nonmetals Halogens Noble gases

Notes

1. ^ The isotopic composition of this element varies in some geological specimens, and the variation may exceed the uncertainty stated in the table.
2. ^ The isotopic composition of the element can vary in commercial materials, which can cause the atomic weight to deviate significantly from the given value.
3. ^ The isotopic composition varies in terrestrial material such that a more precise atomic weight can not be given.
4. ^ The atomic weight of commercial Lithium can vary between 6.939 and 6.996—analysis of the specific material is necessary to find a more accurate value.
5. ^ The element does not have any stable nuclides, and a value in brackets, e.g. [209], indicates the mass number of the longest-lived isotope of the element or characteristic isotopic composition.
6. ^ This element has not been discovered/synthesized.

References

Atomic Weights of the Elements 2001, Pure Appl. Chem. 75(8), 1107-1122, 2003. Retrieved June 30, 2005. Atomic weights of elements with atomic numbers from 1-109 taken from this source.
IUPAC Standard Atomic Weights Revised (2005).
WebElements Periodic Table. Retrieved June 30, 2005. Atomic weights of elements with atomic numbers 110-116 taken from this source.

• • [ e] Periodic tables
Layouts	Standard Vertical Full names Names and atomic masses Text for last Huge table Metals and nonmetals Blocks Valences Inline f-block 218 elements Electron configurations Atomic masses Electronegativities Alternatives
Lists of elements	Name Atomic symbol Atomic number Boiling point Melting point Density Atomic mass
Groups	1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Periods:	1 2 3 4 5 6 7 8
Series	Alkalis Alkaline earths Lanthanides Actinides Transition metals Poor metals Metalloids Nonmetals Halogens Noble gases
Blocks	s-block p-block d-block f-block g-block

chemical element, or element, is a type of atom that is defined by its atomic number; that is, by the number of protons in its nucleus. The term is also used to refer to a pure chemical substance composed of atoms with the same number of protons.
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See also: List of elements by atomic number

In chemistry and physics, the atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom. It is traditionally represented by the symbol Z.
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standard periodic table below.

The periodic table of the chemical elements is a tabular method of displaying the chemical elements. Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869.
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A group, also known as a family, is a vertical column in the periodic table of the chemical elements. There are 18 groups in the standard periodic table.

The modern explanation of the pattern of the periodic table is that the elements in a group have similar
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Periods:]] 1 2 3 4 5 6 7 8
Series Alkalis Alkaline earths Lanthanides Actinides Transition metals Poor metals Metalloids Nonmetals Halogens Noble gases
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atomic mass (m_a) is the mass of an atom at rest, most often expressed in unified atomic mass units.^[1] The atomic mass may be considered to be the total mass of protons, neutrons and electrons in a single atom (when the atom is motionless).
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Isotopes are any of the several different forms of an element each having different atomic mass (mass number). Isotopes of an element have nuclei with the same number of protons (the same atomic number) but different numbers of neutrons.
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standard periodic table below.

The alkali metals are a series of elements comprising Group 1 (IUPAC style) of the periodic table: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).
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The alkaline earth metals are a series of elements comprising Group 2 (IUPAC style) of the periodic table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra).
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The lanthanide (or lanthanoid) series comprises the 15 elements with atomic numbers 57 through 71, from lanthanum to lutetium^[1]. All lanthanides are f-block elements, corresponding to the filling of the 4f electron shell, except for lutetium which is a d-block
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The actinide (or actinoid) series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table, with atomic numbers 89 - 103^[1]. The actinide series derives its name from the first element in the series, actinium.
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In chemistry, the term transition metal (sometimes also called a transition element) has two possible meanings:

It commonly refers to any element in the d-block of the periodic table, including zinc, cadmium and mercury.

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The trivial name poor metals (or post-transition metals) is sometimes applied to the metallic elements in the p-block of the periodic table. Their melting and boiling points are generally lower than those of the transition metals and their electronegativity higher, and they
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Metalloid is a term used in chemistry when classifying the chemical elements. On the basis of their general physical and chemical properties, nearly every element in the periodic table can be termed either a metal or a nonmetal - however a few elements with intermediate properties
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Nonmetal is a term used in chemistry when classifying the chemical elements. On the basis of their general physical and chemical properties, every element in the periodic table can be termed either a metal or a non-metal.
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halogens or halogen elements are a series of nonmetal elements from Group 17 (old-style: VII or VIIA; Group 7 IUPAC Style) of the periodic table, comprising fluorine, F; chlorine, Cl; bromine, Br; iodine, I; and astatine, At.
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noble gases are the elements in group 18 (also sometimes Group 0 IUPAC Style, or Group 8) of the periodic table. It is also called helium family or neon family.
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<onlyinclude> This is a list of chemical elements, sorted by name and color coded according to type of element.

Given is each element's element symbol, atomic number, atomic mass or most stable isotope, and group and period numbers on the periodic table.
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<onlyinclude> This is a list of chemical elements by symbol, including the current signification used to identify the chemical elements as recognized by the International Union of Pure and Applied Chemistry, as well as proposed and historical signs.
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This is a list of chemical elements, sorted by relative atomic mass, or more precisely the standard atomic weights, (most stable isotope for artificial elements) and color coded according to type of element.
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Gram
Unit sign g
Measure Mass
Base Unit Kilogram
Multiple of Base 10⁻³
System SI, CGS, other
Common usage Commonly used in cooking and food labeling
Examples
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The mole (symbol: mol) is the SI base unit that measures an amount of substance. One mole contains Avogadro's number (approximately 6.02210²³) entities.

A mole is much like "a dozen" in that both are absolute numbers (having no units) and can describe any type of
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1, −1
(amphoteric oxide)
Electronegativity 2.20 (Pauling scale) More

Atomic radius 25 pm
Atomic radius (calc.) 53 pm
Covalent radius 37 pm
Van der Waals radius 120 pm
Miscellaneous

Thermal conductivity (300 K) 180.
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List Of Elements By Atomic Number

Information about List Of Elements By Atomic Number

Notes

References