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- Good morning class, today we are going to talk about the history of the periodic table, each of you will explain one concept
- Antoine Laurent Lavoisier, a French chemist, is considered to be the “father of modern chemistry”. He is most noted for his discovery of the role oxygen plays in combustion
- Image result for Newlands chem British chemist John Newlands was the first to arrange the elements into a periodic table with increasing order of atomic masses.
- Johann Döbereiner recognised triads of elements with chemically similar properties
- Image result for The modern periodic table The modern or long form of the periodic table is based on the modern periodic law. The table is the arrangement of elements in increasing order of their atomic numbers.
- In 1913, Henry Moseley showed that the atomic number is a most fundamental property.
- Mendeleev's periodic table is an arrangement of elements in an increasing atomic mass order in a tablet form, such that it reflects similarities and trends in the behaviour of elements.
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