Development of Periodic Table of Elements (2)

Chemistry

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Development of Periodic Table of Elements (2)

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The theory that was discovered by Johann W. Dobereiner before the Modern Periodic Table of Elements was produced (1)

Dobereiner found that the atomic mass of strontium atom, Sr was similar to the average mass of calcium atom, Ca and barium atom, Ba

The theory that was discovered by Johann W. Dobereiner before the Modern Periodic Table of Elements was produced (2)

Dobereiner found that strontium, Sr, calcium Ca and barium, Ba elements had the same chemical properties

The theory that was discovered by Johann W. Dobereiner before the Modern Periodic Table of Elements was produced (3)

Dobereiner found that chlorine, Cl, bromine, Br and iodine, I had the same chemical properties

The theory that was discovered by Johann W. Dobereiner before the Modern Periodic Table of Elements was produced (4)

Dobereiner named the group consisting of chlorine, Cl, bromine, Br and iodine, I elements triad

The theory that was discovered by Johann W. Dobereiner before the Modern Periodic Table of Elements was produced (5)

Dobereiner’s classification was limited to several elements only

The theory that was discovered by Johann W. Dobereiner before the Modern Periodic Table of Elements was produced (6)

Dobereiner classification showed the relationship between the chemical properties of elements and atomic mas

The theory that was discovered by John Newlands before the Modern Periodic Table of Elements was produced (1)

Newlands arranged elements according to their increasing atomic masses

The theory that was discovered by John Newlands before the Modern Periodic Table of Elements was produced (2)

Newlands arranged seven elements in a row because he found that the chemical and physical properties of the first element recurred at every eighth element

The theory that was discovered by John Newlands before the Modern Periodic Table of Elements was produced (3)

Newlands Named the arrangement ( seven elements in a row) as the Law of Octaves

The theory that was discovered by John Newlands before the Modern Periodic Table of Elements was produced (4)

The Law of Octaves had only been conformed by the first 17 elements

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