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Quantity
1
Fluorine's atomic number is 9 and its symbol is F. It is the lightest halogen and exists at standard conditions as a highly toxic, pale yellow diatomic gas. As the most electronegative element, it is extremely reactive, as it reacts with al...
Reviews
4.0
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My grandson is fascinated with the periodic chart. On his birthday I give him an element with the atomic number of his new age and proclaim he is that element old. He looks forward to it every year.
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Gene · February 15, 2026
I got my order quickly. It was exactly as I expected.
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Amy · December 17, 2025
Small but cool little item
I have always wanted a sample of Fluorine ever since high school chemistry. Will it is tiny it neat to finally have a sample.