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Timeline of Elements

The Periodic Table represents more than 5,000 years of human

discovery. The University of Waterloo’s Faculty of Science together

with Chem 13 News marked the 2019 International Year of the Periodic

Table with a worldwide collaboration that chronicles this amazing

story in a timeline. Follow the discovery of the elements by decade

through original designs by students from 118 schools in 28 countries.

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Explore more:

uwaterloo.ca/chemistry/timeline-of-elements

news

1854

1845-

BCE

COPPER-29Jacob Hespeler SS,Cambridge, Ontario

LEAD-82AY Jackson SS,

Toronto, Ontario

SILVER-47Fundación Colegio

Americano De PueblaPuebla, Mexico

GOLD-79Spearfish HS,

Spearfish, South Dakota

IRON-26Wolfert Tweetalig,

Rotterdam, Netherlands

CARBON-6Academy of Technology, Engineering,

Math, and Science & ACT2 Abilene, Texas

TIN-50Cedarburg HS,

Cedarburg, Wisconsin

SULFUR-16Lakota East HS,

Liberty Township, Ohio

ZINC-30Victor Sammurtok School,Chesterfield Inlet, Nunavut

MERCURY-80Resurrection CSS,Kitchener, Ontario

35-1764

71

PLATINUM-78Technical University

of Madrid,Madrid, Spain

COBALT-27Malden HS,

Malden, Massachusetts

NICKEL-28ÉS Catholique

Champlain,Chelmsford, Ontario

MAGNESIUM-12John F. Ross CVI,Guelph, Ontario

1914

1905-

4193

1925-

RHENIUM-75Strathcona-

Tweedsmuir School,Okotoks, Alberta

4719

1965-

DUBNIUM-105University of

Toronto Schools,Toronto, Ontario

SEABORGIUM-106Clint ISD Early

College Academy,Clint, Texas

LAWRENCIUM-103Lawrence Park CI,Toronto, Ontario

2005-2019

1954

1945-

EINSTEINIUM-99Palm Beach

Currumbin State HS,Currumbin, Australia

PROMETHIUM-61Pemberton SS,

Pemberton,British Columbia

BERKELIUM-97Georgian Bay DSS,Midland, Ontario

FERMIUM-100Aviation HS,

Clayfield, Australia

CALIFORNIUM-98Thousand Oaks HS,

Thousand Oaks,California

1944

1935-

TECHNETIUM-43Huron Heights SS,Kitchener, Ontario

FRANCIUM-87Port Credit SS,

Mississauga, Ontario

ASTATINE-85Quezon City Science HS,Quezon City, Philippines

NEPTUNIUM-93Victoria Shanghai

Academy,Hong Kong, China

PLUTONIUM-94Rye High School,Rye, New York

AMERICIUM-95The Steward School,Richmond, Virginia

CURIUM-96Hants North Rural High,Kennetcook, Nova Scotia

1995-2004

FLEROVIUM-114Stanwood HS,

Stanwood, Washington

COPERNICIUM-112National Public

School, Koramangala,Bangalore, India

LIVERMORIUM-116Livonia Churchill HS,

Livonia, Michigan

NIHONIUM-113Tokyo Gakugei University

International SS,Tokyo, Japan

1984

75-

19

HASSIUM-108Saint Michael CHS,

Niagara Falls, Ontario

BOHRIUM-107Lytle Jr. HS,Lytle, Texas

MEITNERIUM-109Seminole HS,

Sanford, Florida

1964

1955-

NOBELIUM-102Hackettstown MS,

Hackettstown,New Jersey

RUTHERFORDIUM-104LaurenHill Academy,Montreal, Quebec

MENDELEVIUM-101Westwood

Community HS,Fort McMurray, Alberta

1904

1895-

EUROPIUM-63Dr. Aletta Jacobs College,Hoogezand, Netherlands

NEON-10Canadian International

School Vietnam,Ho Chi Minh City, Vietnam

KRYPTON-36AL Fortune

Secondary, Enderby, British Columbia

XENON-54Frankfurt

International School,Oberursel, Germany

RADIUM-88Mount Royal University,

Calgary, Alberta

RADON-86Sycamore HS,

Cincinnati, Ohio

ACTINIUM-89Emily Carr SS,

Woodbridge, Ontario

POLONIUM-84Beijing Jiaotong University,

Beijing, China

4183

1825-

BROMINE-35COLTEC - Colégio Técnico da Universidade Federal de Minas Gerais, Belo

Horizonte, Brazil

ALUMINUM-13Tannum Sands State HS,Tannum Sands, Australia

1844

1835-

ERBIUM-68Wigan and Leigh College,Wigan, United Kingdom

TERBIUM-65Ankeny Centennial HS,

Ankeny, Iowa

RUTHENIUM-44Rathkeale College

and St. Matthew’s CS,Masterton, New Zealand

LANTHANUM-57Boston Latin

Academy, Boston,Massachusetts

4182

1815-

CADMIUM-48Woodland Christian HS,

Breslau, Ontario

LITHIUM-3Wembley PS,

Wembley, Australia

SELENIUM-34Marsden State HS,

Waterford West,Australia

SILICON-14St. John’s-

Kilmarnock School,Breslau, Ontario

1794

1785-

STRONTIUM-38Lyme-Old Lyme HS,

Old Lyme, Connecticut

ZIRCONIUM-40Dubai College,Dubai, UnitedArab Emirates

TITANIUM-22F.H. Collins SS,

Whitehorse, Yukon

URANIUM-92Heritage HS, Frisco ISD,

Frisco, Texas

YTTRIUM-39Atid Madaim Lod,

Lod, Israel

BARIUM-56Eastview SS,

Barrie, Ontario

CHLORINE-17École Évangéline,

Wellington,Prince Edward Island

NITROGEN-7East Three SS,

Inuvik, Northwest Territories

HYDROGEN-1Exploits Valley IS,

Grand Falls – Windsor, Newfoundland and Labrador

MANGANESE-25Hill-Murray School,

Maplewood, Minnesota

OXYGEN-8Preston HS and Science Teachers’

Association of OntarioCambridge, Ontario

75-1784

71

MOLYBDENUM-42Oromocto HS,

Oromocto, New Brunswick

TUNGSTEN-74University of Waterloo,

Waterloo, Ontario

TELLURIUM-52KalamundaSenior HS,

Perth, Australia

ARSENIC-33Murdoch University,Murdoch, Australia

ANTIMONY-51Acheron College

Grand Valley,Kitchener, Ontario

BISMUTH-83Russia Local School,

Russia, Ohio

PHOSPHORUS-15Durban Girls’ College,

, Durban, South Africa

1814

1805-

SODIUM-11Gimnazija Jesenice,Jesenice, Slovenia

POTASSIUM-19Middlefield CI,

Markham, Ontario

CALCIUM-20Jean Vanier CSS,Milton, Ontario

IODINE-53Royal University

of Bhutan,Samtse, Bhutan

BORON-5Mount Allison

University, Sackville,New Brunswick

1874

1865-

MENDELEEVcreates modernperiodic table

HELIUM-2Senator O’Connor

College School,North York, Ontario

THULIUM-69King HS,

Tampa, Florida

1884

1875-

GALLIUM-31Hudsonville HS,

Hudsonville, Michigan

HOLMIUM-67Nagle Catholic College,

Geraldton, Australia

YTTERBIUM-70Guilford Technical CC,

Jamestown,North Carolina

SCANDIUM-21Avonworth HS,

Pittsburgh, Pennsylvania

SAMARIUM-62Coláiste Choilm,Swords, Republic

of Ireland

THORIUM-90Leksvik

Videregående Skole,Leksvik, Norway

1894

1885-

PRASEODYMIUM-59Weiss HS,

Pflugerville, Texas

NEODYMIUM-60Seoul ForeignBritish School,

Seoul, South Korea

GERMANIUM-325th Gymnasium

of Mytilene,Mytilene, Greece

DYSPROSIUM-66Lexington HS, Lexington,

South Carolina

ARGON-18Arnprior District HS,

Arnprior, Ontario

FLUORINE-9Texas A&MUniversity,

San Antonio, Texas

1864

1855-

THALLIUM-81JH Bruns Collegiate,Winnipeg, Manitoba

RUBIDIUM-37Palmetto Ridge HS,

Naples, Florida

INDIUM-49Saskatchewan Indian

Institute of Technologies,Regina, Saskatchewan

CESIUM-55Northern SS,

Toronto, Ontario

4192

1915-

PROTACTINIUM-91Plano West SHS,

Plano, Texas

HAFNIUM-72Urangan State HS,Torquay, Australia

437CE-1

47711765- 1804

1795-

CHROMIUM-24Bishop Smith CHS,Pembroke, Ontario

VANADIUM-23Kitchener-Waterloo CVS,

Kitchener, Ontario

NIOBIUM-41Escuela Colombiana de

Ingeniería Julio Garavito,Bogotá, Colombia

TANTALUM-73Chilliwack SS,

Chilliwack,British Columbia

PALLADIUM-46Arrupe Jesuit HS,Denver, Colorado

CERIUM-58Vaughan SS,

Thornhill, Ontario

OSMIUM-76Rockdale Magnet School

for Science and Technology,Conyers, Georgia

RHODIUM-45St. Charles CC,

Cottleville, Missouri

IRIDIUM-77Eagle River HS,

Eagle River, Alaska

BERYLLIUM-4Amos Comenius Memorial

School, Hopedale, Newfoundland and Labrador

1994

1985-

DARMSTADTIUM-110Bluevale CI,

Waterloo, Ontario

ROENTGENIUM-111Pui Kiu College,

Hong Kong, China

TENNESSINE-117Ovilla Christian School,

Ovilla, Texas

OGANESSON-118St. Andrew’s

Episcopal School,Austin, Texas

MOSCOVIUM-115School #192,

Moscow, Russian Federation

LUTETIUM-71Eastwood CI

Kitchener, Ontario

GADOLINIUM-64Ozel Sisli Terakki Tepeoren

Anadolu Lisesi,Istanbul, Turkey