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Copy of Potassium (K)
Transcript of Copy of Potassium (K)
Origin of name Potassium: from the English word "potash" and the Arabic word "qali" meaning alkali. The origin of the symbol K comes from the Latin word "kalium".
The chemical symbol for potassium is K
The average atomic mass is 39.1 u
The atomic number is 19
Potassium has 19 valence electrons in the neutral atom
Sodium, lithium, rubidium, and caesium have similar elements as potassium.
Potassium is too reactive to be found in nature in its element form. However, it forms many salts which can be found in the ground and sea.
Fun Facts of Potassium
Potassium was the first metal isolated by electrolysis.
Until the 18th century no distinction was made between potassium and sodium.
Potassium makes up about 1.5 % by weight of the earth's crust.
It is used as a nutrient for plants and animals,and also for medical purpose
5 compounds potassium can form are Potassium Sulfide, Potassium Fluoride, Potassium Azide, Potassium chromate, and Potassium Hydoxide
Potassium was discovered by Sir Humphrey Davy at 1807 in England.