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1. He thought that atoms were indivisible, but we now know that they can be split into subatomic particles (protons, neutrons and electrons)
2. He also thought that atoms of a given element were all alike, but the idea of isotopes, where you have different amount of neutrons in each isotope of an atoms, that idea has also fallen out.
What else can I help you with?
John Dalton's atomic theory stated that atoms of the same?
According to John Dalton, all the atoms of a single element will have the same mass. This is the basis for the modern atomic theory.
What was John Dalton's experiment on atom's?
john dalton atom is from bigger atom into smallest atom can broken it into smallest piece / part same too atom
For what is John Dalton known for?
Chemical symbols and discovery and elaboration of atoms
How did Dalton define an element?
John Dalton's most important theory, developed in 1803, was that matter is composed of atoms of differing weights that combine in simple ratios.Dalton published a book in 1808 listing the atomic weights of a number of known elements relative to the weight of hydrogen. Although not entirely accurate when published, those weights form the basis for the modern periodic table of the elements.John Dalton has been honored by having his name used as the international atomic mass unit, equivalent to 1/12 of the mass of a neutral carbon-12 atom, the dalton.
How do you summarize the Main ideas of daltóns theory?
Dalton's atomic theory, proposed in the early 19th century, posits that all matter is composed of indivisible atoms, which are the fundamental building blocks of elements. Each element consists of identical atoms with the same mass and properties, while compounds are formed by the combination of different types of atoms in fixed ratios. Additionally, Dalton's theory suggests that chemical reactions involve the rearrangement of these atoms, rather than their creation or destruction. This theory laid the groundwork for modern chemistry by establishing the concept of atoms as the basic units of matter.
Who is the scientist who proved that atoms exist?
John Dalton is considered the scientist who developed the modern atomic theory, providing evidence for the existence of atoms through his experimentation with gases.
Who was considered the father of atomic theory?
John Dalton is considered the father of atomic theory. He proposed that all matter is made up of indivisible particles called atoms, which combine in specific ratios to form compounds. Dalton's theory laid the foundation for modern chemistry and our understanding of the atomic structure.
Which two of the three statements that make up Dalton's atomic theory are no longer regarded as true as stated by Dalton's?
All the atoms in elements are not a like
John Dalton's atomic theory stated that atoms of the same?
According to John Dalton, all the atoms of a single element will have the same mass. This is the basis for the modern atomic theory.
Did Dalton know that atoms contain subatomic particles?
No, Dalton believed that atoms were indivisible.
Who is The schoolteacher who studied atoms and proposed an atomic theory?
The schoolteacher who studied atoms and proposed an atomic theory was John Dalton, known for his development of modern atomic theory in the early 19th century. Dalton's theory proposed that all matter is composed of small, indivisible particles called atoms that are unique to each element and are rearranged in chemical reactions. His work formed the foundation for modern chemistry.
Who proposed the first modern atomic theory?
The first modern atomic theory was proposed by John Dalton in the early 19th century. Dalton's theory stated that all matter is made up of tiny, indivisible particles called atoms, and that atoms of different elements have different masses and properties.
What portion of daltons atomic theory is still considered correct?
Dalton believed that all elements were composed of tiny indivisible particles called atoms. We now know that this is not true, there are particles found within the atom: protons, neutrons, & electrons. Dalton believed that all atoms of the same element were identical. We know this is not true. Isotopes are atoms of the same elemtn that have different mass numbers because of different numbers of neutrons, therefore, all atoms of the same element are NOT identical
Did Dalton say that all atoms are the same size?
No, Dalton did not say that all atoms are the same size. Instead, Dalton proposed that all elements are composed of indivisible particles called atoms, and that atoms of different elements have different sizes and properties.
Why was john Dalton known for the modern atomic theory?
John Dalton was the adept of the atomic theory and a prominent founder.The five main points of John Dalton's atomic theory: · Elements are made of tiny particles called atoms. · All atoms of a given element are identical. · The atoms of a given element are different from those of any other element.
What led Dalton to research to structure of atom?
Dalton's interest was sparked in atoms because he wanted to know why elements combine in specific proportions to form compounds. He was a pioneer in the development of modern atomic theory.
Which British scientist is considered the father of modern chemistry because he identified the basic building blocks of matter and opened the way for modern chemistry?
The British scientist considered the father of modern chemistry is John Dalton. He proposed the atomic theory in the early 19th century, which identified atoms as the basic building blocks of matter and laid the foundation for modern chemistry.
