DEVELOPMENT OF PERIODIC TABLE

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nuriye aamir

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1st scientists to make a periodic table was John Dalton who ordered elements in order of atomic number
In 1864, John Newland found Law of Octaves stating that properties of every 8th was similar
In 1869, Dimitri Mendeleev placed elements into table used today however 50 elements hadn't been discovered
Dimitri Mendeleev ordered elements in order of atomic number leaving spaces for undiscovered elements. He ordered the elements so elements around each other shared similar properties
Dimitri Mendeleev made correct predictions about the missing elements by using ones around it to guess their properties
In 1932, James Chadwick carried out an experiment explaining existance of neutrons
Fracitional distillation is a technique used to seperate 2 liquids mixed together
Simple distillation seperates a solvent from soluble solids dissolved in solvent

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DEVELOPMENT OF PERIODIC TABLE

Cards (8)

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3.1 The Periodic Table and Periodicity

Topic 6: Groups in the Periodic Table

1.2.4 The Periodic Table

1.2 The Periodic Table

Module 3: Periodic Table and Energy

1.2 Atomic Structure and the Periodic Table

1. Atomic structure and the periodic table

1. Atomic structure and the periodic table

Topic 4: Inorganic Chemistry and the Periodic Table

Topic 1: Atomic Structure and the Periodic Table

8.6.3 Critical Periods in Development

3.1.2 Group properties

1.2.3 Transition Metals

1.2.1 Periodicity

3.1.1 Periodic trends

8.6.3 Critical Periods in Development

1.2.2 Group Properties