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What did John Dalton invent?

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John Dalton is best known for pioneering modern atomic theory. Though the idea of atoms has been around for quite some time, Dalton continued countless scientific work and created what is now called Dalton's law.

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Dalton established that elements are made of atoms and that they cannot be subdivided or destroyed; however, he noted that atoms can be combined, separated or rearranged in chemical reactions. Dalton's work also theorized that atoms of different elements can combine to form chemical compounds. His legacy has remained intact, and he is credited for the comprehensive development of atomic theory.

In addition to his work with atomic theory, Dalton is also well-known for his research into color blindness. He was afflicted with the condition and attempted to theorize its origins. Though his theory was later proven wrong, color blindness later became to be known as Daltonism because he was the first person to research the subject.

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Related Questions

  • Q:

    Who was the scientist John Dalton?

    A:

    John Dalton was an English scientist famous for his atomic theory. Dalton (1766 - 1844) is also known for his studies on color blindness and meteorology.

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  • Q:

    In what year did John Dalton propose the Billiard Ball Model?

    A:

    John Dalton proposed the Billiard Ball Model in 1802. His claim was that atoms were the smallest constituents of matter and that they were entirely solid, like billiard balls.

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  • Q:

    What was one of the incorrect postulates of Dalton?

    A:

    John Dalton's theory regarding atomic theory, published in 1808, incorrectly stated that atoms were the indivisible components of matter. This was later shown to be incorrect when the existence of electrons, protons and neutrons was demonstrated. Dalton was, however, correct in stating that the atom is the smallest particle that is involved in a chemical reaction.

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  • Q:

    What assumptions are included in Dalton's atomic theory?

    A:

    The atomic theory formulated by the British chemist John Dalton proposes that atoms are indivisible particles comprising all matter; atoms of the same element share identical properties, including shape, size and mass; atoms of an element are unique and vary from the atoms of different elements; atoms are the fundamental units of a chemical reaction; atoms are conserved and can neither be created nor destroyed; and atoms combine in simple, fixed proportions to produce compound atoms, known as molecules. Dalton is commonly referred to as the father of the modern atomic theory.

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