What did John Dalton proposed about the atom?

Q: How are electrons and protons similar? How are they different?

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Q: Describe John Dalton's atomic theory?

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

Q: What are some flaws in Dalton's atomic theory?

A: Given:- What are some flaws in Dalton's atomic theory?

Q: Some chlorine atoms have an atomic mass of 37, while others have an atomic mass of 35. What is the…

A: The mass number of an atom is the sum of proton and neutrons present in that atom.  Mass number =…

Q: ered neutro

A: Neutron is a fundamental particle present in the nucleus of an atom.

Q: How do you know what is inside an atom?

A: Solution- First know about atom- Atom, is the smallest unit of molecules which  characteristic…

Q: What are the main ideas in Dalton’s atomic theory?

A: Dalton was a well-known experimentalist and his significant studies on behaviours and properties of…

Q: Fill in the blanks. The subatomic particle _____________ lacks a charge and are located in…

A: Subatomic particles are neutron , proton and electron in which electron has -ve charge proton has…

Q: what was johns dalton initial research focus was and what he eventually contributed to early atomic…

A: Johns dalton first introduced atomic theory in chemistry.He gave three laws.These are i-Law of…

Q: Describe the Dalton model of the atom.

A: The Dalton model of the atom has to be described below.

Q: Describe Rutherford’s gold foil experiment. How did the experiment prove that the plum-pudding model…

A: Plum pudding model was first put forth J J Thomson. According to him, the structure of the atom was…

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

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Q: What is the symbol for neon?

A: Neon is a Nobel gas element. It's atomic number is 10. It is a colourless and orderless monoatomic…

Q: Describe the early Greeks' idea of the atom?

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Q: define element and atom?

A: An element is a pure substance made up of only one kind of atom. An atom is the basic unit of all…

Q: An atom has a mass of 52 amu and 24 electrons. How many neutrons are in this atom?

A: Neutron is a subatomic particle which do not contains any charge and is neutral. It is denoted by…

Q: Explain John Dalton and the Atomic Theory?

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Q: Recall the history of the development of atomic theory from Democritus to Dalton to Mendeleev

A: Democritus a Greek philosopher knew that if a stone is cutted into two halves , then these two…

Q: Provide a definition for the term atom

A: Answer  Definition of atom

Q: which of three subatomic particle was discovered first - the proton, neutron or electron?

A: The subatomic particle out of the three that was discovered first is to be identified- the proton,…

Q: For the particles of an atom, which two particles have the same mass?

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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: Briefly explain how Rutherford discovered the nucleus.

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Q: is chlorine gas an element ?

A: The simplest chemical substance which made up of atoms with the same number of protons and it cannot…

Q: Summarize the history of thedevelopment of atomic theory,beginning with Dalton

A: Every matter is made up of atoms. The theory we study today took a long time for its discovery. The…

Q: What is the symbol for phosphorus?

A: Given :- name of element = phosphorus  To determine :- it's symbol

Q: Find the number of protons, electrons, neutrons of and symbol of Tungsten.

A: The number of protons, electrons, neutrons of and symbol of Tungsten has to be given,

Q: What is a family or group of elements?

A: Elements: These are the basic pure substances from which chemical compounds can be formed. To define…

Q: Which part of the atom has most of mass ?

A: Most of an atom's mass is in its nucleus.

Q: Are two atoms of the same element identical ?

A: Element are pure substance and cannot be break down into other substance by any means that is…

Q: What is an element?How are elements arranged in the periodic table?

A: The elements starting from hydrogen having atomic number 1 to the element with atomic number 118 are…

Q: Which scientist developed the "plum pudding" model of the atom? Spherical cloud ´of positive charge…

A: J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively…

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: accomplishments

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Q: Rutherford’s gold foil experiment gave scientists clues to the composition of the atom. One thing…

A: In Rutherford's Gold foil experiment,  proved that atom composed with two things - - 1) positively…

Q: Summarize the history of the atomic idea?

A: Greek philosophers. Leucippus and Democritus put forward the idea of atoms as far back as the fifth…

Q: What are some characteristics of the “space” inside an atom?

A: According to Dalton's atomic theory,  Matter is buildup by small particles called atoms  Atoms are…

Q: What did Rutherford conclude about the atom that would explain the unexpected result explain

A: Rutherford performed the α-particle scattering experiment and observed that most of the α- particles…

Q: Draw a diagram of Rutherford's experiment and describe it. Include a full description of how the…

A: Rutherford uses a gold thin foil and alpha-particles and because of that this model is also known as…

Q: proposed

A: Democritus theory is Ancient theory, He say about that matter consists of atom means smallest…

Q: For the given atom: (a) determine the number of protons, neutrons, and electrons in the neutral…

A: Atoms contains nucleus and electron revolve around the nucleus. Nucleus contains proton and neutron,…

Q: Summarize the history of the atomic idea. How was Dalton able to convince others to accept an idea…

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Q: Which of the following is true about subatomic particles?

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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…

Q: What is a diatomic element

A: An element is defined as a substance which contains only one type of atom. For example, a piece of…