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Which of these best describes how atomic theory developed?

Which of these best describes how atomic theory developed?

Which of these BEST describes how atomic theory developed? J.J. John Dalton deduced that matter consisted of atoms made from electrons and nuclei. Many people at different times contributed to the discovery of the atomic nature of matter and subatomic particles.

What helped in the development of atomic theory?

Joseph Priestly, Antoine Lavoisier, and others set the stage for the foundation of chemistry. They demonstrated that substances could combine to form new materials. It was the English chemist, John Dalton, who put the pieces of the puzzle together and developed an atomic theory in 1803.

How did the atomic theory developed?

In 1911, Ernest Rutherford developed the first coherent explanation of the structure of an atom. Using alpha particles emitted by radioactive atoms, he showed that the atom consists of a central, positively charged core, the nucleus, and negatively charged particles called electrons that orbit the nucleus.

What is the best description for atomic theory?

Atomic theory is the scientific theory that matter is composed of particles called atoms. Atomic theory traces its origins to an ancient philosophical tradition known as atomism.

What do you understand by atomic theory of matter?

The atomic theory of matter seeks to explain the nature of matter-the materials of which the Universe, all galaxies, solar systems and Earth are formed. First postulated by JOHN DALTON, the atomic theory of matter contends: Each chemical element is made of fundamental units called ATOMS.

How did each model of the atom helped to develop the atomic theory?

How did each model of the atom help to develop the atomic theory? Each model provided opinions that were added. Each model showed different properties of the same structure. Each model showed new particles that had been discovered.

What does the atomic theory implies?

Atomic theory, ancient philosophical speculation that all things can be accounted for by innumerable combinations of hard, small, indivisible particles (called atoms) of various sizes but of the same basic material; or the modern scientific theory of matter according to which the chemical elements that combine to form …

Why is the atomic theory still a theory?

Chemistry is the science of matter. Matter is made up of things called atoms, elements, and molecules. For this reason, atoms are still considered a theory, a very strong theory, but a theory none the less.

Which is scientist credited with developing the first scientific atomic theory?

Ernest Rutherford’s experiment led the nuclear model of the atom. Which scientist is credited with developing the first scientific atomic theory John Dalton Which is a component of John Dalton’s atomic theory?

How is the atomic theory modified from Dalton to Rutherford?

Explain how the atomic theory was modified from Dalton’s theory to Rutherford’s. Include an explanation of why the theory was modified. Rutherford’s results showed that most of an atom is empty space and that the mass is concentrated in the center of the atom. This discovery required the plum pudding model to revised.

Which is discovery contradicts Dalton’s atomic theory?

Which of these discoveries contradict components of Dalton’s atomic theory? – Atoms contain smaller particles: protons, neutrons, and electrons. – Atoms of a given element can have different numbers of neutrons. – Nuclear reactions can change an atom of one element into an atom of another element.

What did Ernest Rutherford’s gold foil experiment demonstrate about an atom?

Rutherford’s results showed that most of an atom is empty space and that the mass is concentrated in the center of the atom. This discovery required the plum pudding model to revised. What did Ernest Rutherford’s gold foil experiment demonstrate about an atom?

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