Determine what was wrong with Dalton’s theory andprovide the most recent version of the atomic structure.

Q: Describe John Dalton's atomic theory?

A: Structure of atom is the significant discovery. Different scientists has proposed different…

Q: g. What is the atomic number for potassium? h. What is the atomic mass for potassium? i. How is the…

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Q: Describe the Rutherford's α-particle bombardment experiment. Explain the Rutherford Atomic Model…

A: Solution :      Rutherford's atomic model put forward by Ernest Rutherford to explain the atomic…

Q: How and by whom was the electron discovered?

A: The electron was discovered by an English physicist J.J Thomson.  J.J Thomsom performed a…

Q: how would you describe the elements from group 1 to group 12 in the periodic table

A: To find: how would you describe the elements from group 1 to group 12 in the periodic table

Q: What are the major postulates of Dalton's atomic theory

A: Here we have to write the major postulates of Dalton's atomic theory-

Q: How the number of electrons “owned” by an atom is determined ?

A: The number of electrons owned by an atom is determined by calculating the number of bonds and number…

Q: Explain the Nuclear Model of the Atom?

A: Rutherford's atomic model is also known as the nuclear model of an atom.

Q: List the basic postulates of Dalton’s atomic theory.?

A: The structure of matter is explained by the experimental facts known at the time John Dalton in the…

Q: What was Thomson's cathode ray experiment?

A: Sir J.J Thomson's cathode ray experiment led to the discovery of the electron. This was one of the…

Q: From the experiments of jj thomson which of the following is not one of his conclusions. electrons…

A: The question is based on the concept of atomic structure. We have to identify the conclusion which…

Q: Which observation by Ernest Rutherford and his students refuted the plum pudding model?   A:alpha…

A: Here, we have to find the observation by Ernest Rutherford and his students that refuted the plum…

Q: On a sheet of paper, Illustrate the history of the atom. Indicate the scientist's name, the Time…

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Q: In atoms, protons and neutrons are found (a) only in the nucleus. (b) outside the nucleus. (c)…

A: An atom is composed of three main sub atomic particles; electrons, protons and neutrons. Out of…

Q: Rutherford's gold foil experiment contributed to the discovery that: A. Atoms contain electrons B.…

A: The given statements about Rutherford's gold foil experiment are : A. Atoms contain electronsB.…

Q: Briefly describe the contribution to atomic theory made by democratic, Dalton, J.J. Thomson and…

A: John Dalton and other scientist notices that every chemical substance combines and break down their…

Q: Talk briefly about what is the history of the evolution of atomic models from Greece to the current…

A: Atomic theory is the definition of the natural science of atoms and the elements that include the…

Q: A brief summary indicating Rutherford major contribution to the atomic theory.

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Q: II. Complete the following table by listing the contributions of the scientists to the understanding…

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Q: Describe the plum-pudding model of the atom.

A: The 'plum pudding' model of the atom was proposed by J.J Thomson. According to this model, the atom…

Q: Which of the following scientists had similarities in their atomic model, but lived thousands of…

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Q: How did Max Planck explain the fact that metal will glow different colors when heated?

A: Max Planck has studied the emission of light by means of hot objects. He observed a heated metal…

Q: This physicist gets credit for the initial information about an atom's nucleus: Dalton Thomson…

A: the correct options are:

Q: 9. Which of the following  NOT correctly matched the scientists and their models? Select one: a. J.…

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Q: Which scientist used alpha particles to determine that atoms are mostly empty space? Rutherford…

A: Scientist Rutherford used alpha particle to determine that atom are mostly empty spaced. So option…

Q: Describe Rutherford’s nuclear theory?

A: Rutherford, in his experiment, directed high energy streams of α-particles from a radioactive source…

Q: Summarize Dalton’s atomic theory.

A: John Dalton was the scientist who gathered all the old ideas he got about an atom and put together…

Q: QUESTION 18 The first scientist introduced the quantum concept that radiation is not emitted in…

A: Quantum concept that radiation is not emitted in continues amount but in discreet bundles of energy.

Q: Which of the following  NOT correctly matched the scientists and their models? Select one: a. J. J…

A: We have to choose the correct statement for the following given scientists and their models as…

Q: Explain how Rutherford concluded that the atom is principally empty space.

A: An atom is composed of three component particles which are electrons, protons and neutrons.  The…

Q: Which scientist developed a model that is still used today to show the number of electrons in each…

A: Bohr model explains an atom as a small and positively charged nucleus surrounded by electrons. These…

Q: Design a concept map that compares and contrasts the atomic ideas proposed by Democritus and John…

A: These are different atomic theories and in next step two are explained. Ancient Greek Beliefs.…

Q: Could Rutherford make any conclusions about neutrons and electrons based on the experiment's results…

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Q: Describe cathode ray tube experiment and draw its diagram

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Q: 14. List the six ideas of John Dalton's model of the atom

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Q: When was the first theory about the character of the atom developed? O a. some 100 years ago O b.…

A: Atomic theory is a scientific theory of the nature of matter, which states that matter is composed…

Q: 2. Evolving Models of the Atom. Draw and specify key features or discoveries associated with each of…

A: a).1. All matter is comprised of tiny, definite particles called atoms. 2. Atoms are indivisible and…

Q: Rutherford model of an atom

A: Atomic structure of elements given by Rutherford is known as Rutherford atomic model (or) Rutherford…

Q: QUESTION6 Rutherford's alpha-particle bombardment of gold foil helped develop our current model of…

A: Answer 6: In the Rutherford's alpha -particle experiment it was observed that:i)Most of the alpha…

Q: what is the composed only of carbon,hydrogen, and halogen atoms?

A: The compound having Carbon and hydrogen only is called hydrocarbon. For example, Methane, CH4

Q: What was the key piece of evidence used by Rutherford to claim that an atorm was mostly empty space?

A: The picture provided contains multiple questions. Hence as per our guidelines only the first…

Q: which beam was used in Rutherford's experiment?

A: Rutherford’s experiment established the nuclear model of the atom, in which a beam of helium nuclei…

Q: How did the experiment prove that the plum-pudding model of the atom waswrong?

A: Thomson atomic model was given by William Thomson in the year 1900. This model described the inner…

Q: In Rutherford’s planetary model of the atom, what keepsthe electrons from flying off into space?

A: To explain what is/are the things that keeps the electrons from flying off into the space in the…

Q: In 1909, a team of British scientists led by Ernest Rutherford, carried out the Gold Foil Experiment…

A: Gold Foil Experiment helped to determine the arrangement of particles in the atom.

Q: Provide the major contributions of Becquerel, Thomson, Millikan, Rutherford, and Mosely to the…

A: The scientific idea that matter is made up of tiny units called atoms is known as the "Atomic…

Q: 14. Which of the following scientists discovered the electron? A. Democritus B. Dalton C. Thomson D.…

A: Electron is a subatomic particle having a negative charge which is found in all the atoms.  The…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.