Science, Tech, Math › Science Greek Alphabet in Chemistry Table of Greek Letters Share Flipboard Email Print sudanmas/E+/Getty Images Science Chemistry Periodic Table Basics Chemical Laws Molecules Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Todd Helmenstine Todd Helmenstine is a science writer and illustrator who has taught physics and math at the college level. He holds bachelor's degrees in both physics and mathematics. our editorial process Todd Helmenstine Updated March 04, 2019 Scholars used to be conversant with Greek and Latin as part of their education. They even used these languages to publish their ideas or work. Correspondence with other scholars was possible even if their native languages weren't the same. Variables in science and mathematics need a symbol to represent them when they are written. A scholar would need a new symbol to represent their new idea and Greek was one of the tools at hand. Applying a Greek letter to a symbol became second nature. Today, while Greek and Latin aren't on every student's curriculum, the Greek alphabet is learned as needed. The table below lists all twenty-four letters in both upper and lowercase of the Greek alphabet used in science and mathematics. Name Upper Case Lower Case Alpha Α α Beta Β β Gamma Γ γ Delta Δ δ Epsilon Ε ε Zeta Ζ ζ Eta Η η Theta Θ θ Iota Ι ι Kappa Κ κ Lambda Λ λ Mu Μ μ Nu Ν ν Xi Ξ ξ Omicron Ο ο Pi Π π Rho Ρ ρ Sigma Σ σ Tau Τ τ Upsilon Υ υ Phi Φ φ Chi Χ χ Psi Ψ ψ Omega Ω ω Writing Greek Letters on the Computer Interesting Facts About the English Alphabet Learn the Greek Alphabet With These Helpful Tips What Are the Letters of the Greek Alphabet? How the Greek Alphabet Developed Why Mathematics Is a Language A List of the Elements of the Periodic Table A Guide to Every Math Symbol and What It Represents Latin Alphabet Changes: How the Roman Alphabet Got Its G A Brief History of Writing Alphabet - Definition and Examples A Comprehensive Glossary of College Greek Letters What Was the First Alphabet? Element Symbol Definition in Chemistry Who Came Up With the Alphabet? What Words Should You Capitalize in French?