Chemistry

Alkali Metals (Group one)

3134b78a-18ad-42ca-abee-6470fe0a77b5 (image/jpg)

Alkali Metals possess only one valence electron which they want to love to become a +1 cation when bonding with other atoms.  They are very reactive.

Lithium

846630f2-6233-4089-8a53-1396db8ab0e5.JPG (image/JPG)

From the word “Lithos” meaning rock Lightest metals that floats on water and reacts with water Very soft and can be cut with a knife Never used as a structural metal Appears deep red light when burned

Sodium

99077d4d-848d-45c6-9a9c-1d4c5e7b9035.JPG (image/JPG)

From the word “Soda” meaning Headache remedy Symbol from the Latin word “Natrium" 6th most abundant element on Earth and stored under oil Electrolytically separated from compounds Very light and can be cut with a knife Appears strong yellow-orange light when burned

Cesium

593a7a4d-6157-4b3f-a2f0-416b132d9e69.JPG (image/JPG)

From the Latin word “caesius” meaning sky-blue Metal used to make atomic clocks which are VERY precise

Potassium

From the English word “potash” meaning pot ashes Metal that is kept under oil and is extremely reactive with water Easily cut and very reactive Easily seen under blue filter when burned Potassium salt is used as a salt substitute but too much can make you jittery!

06e6005d-79a1-4671-9c78-b6c6e84c7b51.JPG (image/JPG)