According to dalton's atomic theory, which of the following best describes an atom? can be destroyed present in all matter composed of elements does not contain particles
According to dalton's atomic theory, which of the following best describes an atom? can be destroyed present in all matter composed of elements does not contain particles
Present in all matter.
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Explanation:
The atomic theory is that all matter is made up of tiny units or particles called atoms. This theory describes the characteristics, structure and behavior of atoms as well as the components that make up atoms. Furthermore, the theory states that all elements are made up of identical atoms.
The atomic theory is a theory in the study of chemistry that states atoms are the building blocks of matter. Atoms contain protons, neutrons and electrons. Protons, which have a positive charge, and neutrons are found in the nucleus of the atom. Electrons, which have a negative charge, orbit the nucleus.
According to the atomic theory, all elements contain atoms. The difference is the number of protons, electrons and neutrons in that atom. For instance, hydrogen contains one proton and one electron but no neutrons. Oxygen, on the other hand contains eight protons, electrons and neutrons. The difference in protons, electrons and neutrons determines the stability and the other properties of any particular element. These elements are grouped according to their atomic masses, which depend on the number of protons and neutrons in each of the atoms. Because oxygen has more protons and neutrons than hydrogen, it has a higher atomic mass.
The answer is: As new discoveries are made, existing theories are revised or replaced.
Dalton stated that atom is matter that can not be divided.
His "plum pudding" model (1904) suggested: the electrons are embedded in the positive charge.
J. J. Thomson discovered the electron in 1897.
According to Rutherford model of the atom:
1) Atoms have their charge concentrated in a very small nucleus.
2) Major space in an atom is empty.
3) Atoms nucleus is surrounded by negatively charged particles called electrons.
4) An atom is electrically neutral.
The universe was created at the Big Bang.
Explanation:
a,c
Explanation:
Rutherford's model of the atom
Explanation:
The Rutherford's model was the first to suggest a nuclear model of the atom. The model postulates that an atom is made up of small positively charge center called the nucleus where all the mass is concentrated.
Rutherford performed the gold foil experiment in 1911 that gave him an insight into the atom. He bombarded a gold foil with alpha particles by which he found out that most of the alpha particles passed through the foil while a few of them were deflected back. To explain his findings he suggested that an atom is made up of tiny nucleus surrounded by a large extranuclear part containing electrons. Further experiments showed that the heavy nucleus was made up of smaller particles called protons.
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Rutherford
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Present in all matter
Explanation:
John Dalton was the first scientist to propose the 'theory of atom'. The crucial ideas of Dalton's theory were:
- All matter is composed of atoms
- Atoms are indivisible
- Different atoms combine to form molecules
- Atoms of the same element have identical mass, size and properties
Thus, based on the given options the statement that best describes an atom from the perspective of Dalton's theory is that they are present in all matter
The John Dalton's model..
It is also known as the dot model...
Explanation:
It just described it as a small, dense location.
1) Everything is made up of atoms. 2)Atoms are indivisible and also undestroyable. 3) The combination of 2+ different kinds of atoms creates compounds 4) A chemical reaction happens when atoms are rearranged/moved around.
I believe the correct answer from the choices listed above is option C. The statement that describes the VSEPR theory would that electron pairs in the valence shell of an atom exert a repulsive force on all other electron pairs in the valence shell of the atom.
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Explanation:
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