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Tin (Sn)
Element with atomic number 50, category: Post-transition metal, a solid at room temperature.
Element 50 of 118
Post-transition metal
Tin
Group 14, Period 5
Common Uses
Solder, cans (Indonesia is a major producer)
Electron Diagram
About Tin
Tin is a chemical element with the symbol Sn and atomic number 50, meaning every atom has 50 protons in its nucleus. It is classed as Post-transition metal and is a solid at room temperature. Its atomic mass is about 118.710 atomic mass units (u).
On the periodic table, Tin sits in group 14, period 5, which determines how many electron shells it has and how it tends to react with other elements.
Uses of Tin
In daily life and industry, Tin is used for Solder, cans (Indonesia is a major producer). These uses are closely tied to the typical properties of elements in the Post-transition metal category.
Electron Structure of Tin
Using a simplified electron shell model (at most 2 electrons in the first shell, 8 in the second, 18 in the third, and so on), Tin has 4 electron shells, with an approximate arrangement of 2, 8, 18, 22 electrons from the innermost shell to the outermost. This is a simplified learning model, not the full electron configuration that accounts for the s, p, d and f subshells.
Explore Other Elements
Want to see another element or try the element symbol quiz? Go back to the Interactive Periodic Table to explore all 118 chemical elements.