Astatine Electron Configuration

Summary

Look up the full and shorthand electron configuration for Astatine (At, Z=85) with an interactive orbital diagram.

How it works

1. Select the notation you want: full, shorthand (noble gas), or orbital box diagram.
2. The full configuration lists every subshell from 1s through 6p.
3. The shorthand uses [Xe] to replace the 54 inner electrons, showing only the valence and outer subshells.
4. The orbital diagram displays each subshell as boxes with arrows representing electrons.
5. Use the copy button to grab the notation for use in assignments or notes.

Use cases

• Verify astatine's electron configuration for chemistry coursework.
• Understand why astatine is a halogen with 7 valence electrons (like fluorine, chlorine, and iodine).
• Compare Period 6 element configurations side by side.
• Study the role of 4f and 5d subshells in post-xenon elements.
• Prepare for AP Chemistry or university-level inorganic chemistry exams.

Frequently Asked Questions