On August 20, 1779, Jön Jacob von Berzelius, Swedish chemist, inventor of the symbols of chemical elements, was born in the Swedish province of Östergötland.

On this day (August 20), 1779, Jön Jacob von Berzelius, Swedish chemist, inventor of the symbols of chemical elements, was born in the Swedish province of Östergötland.
Berzelius enrolled as a medical student at Uppsala University, from 1796 to 1801 Anders Gustaf Ekeberg, the discoverer of tantalum, taught him chemistry during this time. He worked as an apprentice in a pharmacy, during which time he also learned practical aspects in the laboratory such as glass blowing.
Additionally, as part of his studies, in 1800, Berzelius learned about the electric battery from Alessandro Volta , the first device that could provide a constant electrical current (ie, the first battery). He built a similar battery for himself, consisting of alternating copper and zinc discs, and this was his early work in the field of electrochemistry.
Berzelius graduated as a doctor in 1802. He worked as a doctor near Stockholm until the chemist and mine owner Wilhelm Hisinger recognized his skills as an analytical chemist and provided him with a laboratory.
In 1808, he was elected to the Royal Swedish Academy of Sciences . During Berzelius' tenure, he is credited with revitalizing the Academy and leading it into a second golden age He was elected a Foreign Honorary Fellow of the American Academy of Arts and Sciences in 1822. In 1827, he became a correspondent for the Royal Institute of the Netherlands, and in 1830 an associate member. In 1837, he was elected to the Swedish Academy, in chair number 5.

Achievements:

Law of definite proportions

Shortly after arriving in Stockholm, Berzelius wrote a chemistry textbook for his medical students, Lärboki Kemien , which was his first significant scientific publication.

He had performed experiments, in preparation for writing this textbook, on the compositions of inorganic compounds, which was his first work on definite proportions

Chemical Notation

To aid his experiments, he developed a system of chemical notation in which the elements that make up any particular chemical compound were given simple written labels, such as O for oxygen or Fe for iron, with their proportions in the chemical compound denoted by numbers. . Berzelius thus invented the chemical notation system that is still used today, the main difference being that instead of the subscript numbers used today (for example, H 2 Or or Faith 2 Or 3 ), Berzelius used superscripts (H 2 O or Fe 2 OR 3 ) .

Element discovery

Berzelius is credited with discovering the chemical elements cerium and selenium and having been the first to isolate the silicon and the thorium

New chemical terms

Berzelius is credited with the origin of the chemical terms " catalysis ", " polymer " , " isomer ", "protein" and " allotrope " , although their original definitions in some cases differ significantly from modern usage.

Biology and organic chemistry

Berzelius was the first person to make the distinction between organic compounds (those containing carbon) and inorganic compounds.

As a curiosity, comment that Berzelius affirmed in 1810 that living beings function through a mysterious "vital force", a hypothesis called vitalism. However, the notion of vitalism continued to persist, until further work on the abiotic synthesis of organic compounds provided overwhelming evidence against vitalism.

-------------------------------------------- -------------------------------------------------- -
- the H!
- Hydrogen!
- the Faith!
- Iron!
- the Al!
- Aluminum!
- the B!
- Boro!
- the LOL!
- how?
- The LOL!
- is that a chemical element?
- LOL for "Laughing Out Loud"
- what?
- hahahahahaha...
- but... you want to focus!
- ok, vlae...
.

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