Iodine (I), element 53 – Learn Acer periodic table

Nonmetal, atomic number 53.

Iodine is a chemical element with symbol I and atomic number 53. The name is from Greek ἰοειδής ioeidēs, meaning violet or purple, due to the color of iodine vapor. Iodine and its compounds are primarily used in nutrition, and industrially in the production of acetic acid and certain polymers.

Symbol I. Atomic mass 126.904473 u. Group 17, period 5. Electron configuration [Kr] 4d10 5s2 5p5. Electrons per shell 2, 8, 18, 18, 7. State at room temperature: Solid. Melting point 113.7 °C, boiling point 184.3 °C. Discovered by Bernard Courtois.

Element data from Wikipedia, CC BY-SA 3.0.

Iodine (I), element 53 – Learn Acer periodic table

Iodine

Facts