Connecting Chemistry

Flourine

Atomic symbol: F
Atomic number: 9
Atomic mass: 19.00

Appearance: Pale yellow gas at STP

Group: 17
Period: 2
Series: Halogens (Reactive nonmetals)
Block: p
Electron configuration: 1s² 2s² 2p⁵

Fluorine at room temperature, F~2~, is highly toxic and extremely reactive.

Most electronegative element.

Fun Fact! Compounds of fluorine, such as sodium fluoride, are used in toothpastes, mouthwashes and in drinking water to prevent dental cavities.

https://www.verywellhealth.com/fluoride-health-benefits-4570994