LANGUAGE OF CHEMISTRY
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Chemistry
•
8th Grade
•
Hard
Naitik Dixit
Used 2+ times
FREE Resource
9 Slides • 0 Questions
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LANGUAGE OF CHEMISTRY
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MATTER
MATTER IS ANY THING THAT OCCUPIES SPACE AND HAS MASS AND CAN BE PERCIEVED BY THE SENSES(SIGHT , TOUCH ).
MATTER CAN BE PURE OR IMPURE IN NATURE .
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PURE SUBSTANCE :- ELEMENTS AND COMPUND
IMPURE SUBSTANCE:- MIXTURE
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ELEMENTS
In chemistry, an element is a pure substance which cannot be broken down by chemical means, consisting of atoms which have identical numbers of protons in their atomic nuclei. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number.
THERE ARE 118 ELEMENTS OF WHICH 91 ARE NATURAL WHILE OTHERS AYNTHETIC .
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JOHN DALTON
John Dalton 6 September 1766 – 27 July 1844) was an English chemist, physicist, and meteorologist. He is best known for introducing the atomic theory into chemistry.
HE HAS SUGGESTED FIGURATIVE SYMBOLS WHICH WAS NOT APPROVED
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BERZELIUS
Baron Jöns Jacob Berzelius (20 August 1779 – 7 August 1848) was a Swedish chemist. Berzelius is considered, along with Robert Boyle, John Dalton, and Antoine Lavoisier, to be one of the founders of modern chemistry.
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VALENCY
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VARIABLE VALENCY CHART
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LANGUAGE OF CHEMISTRY
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