Contact

We would like to hear from students, teachers and anyone who uses the tool. Email is the quickest way to reach us.

General enquiries

Send questions or feedback to [contact-email]. We aim to reply within a few working days.

Corrections

Chemistry should be accurate. If you spot a charge, oxidation state or label that looks wrong, email [contact-email] with the element name and the correction. Please include a source if you can, such as IUPAC or the Royal Society of Chemistry, so we can verify and update quickly.

What to include

• The element name and symbol.
• The value you think is incorrect.
• The value you believe is right.
• A reference, if available.

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