Question

1. Which of the following statements is one of the conclusions reached by Ernest Rutherford from his well-known experiment with thin sheets of gold? A. The atom is made up of electrons, protons, and neutrons. B. The charge of the electron is -1 and that of the proton +1. C. Electrons travel in orbits around the nucleus, and each orbit represents a quantized energy level. D. Neutrons give stability to the nucleus by counteracting repulsion between protons. E. Most of the atom is empty space and its mass is concentrated in a small volume. 2. Which or which of the original statements of Dalton's theory is (are) not entirely correct? A. All matter is made up of atoms. B. Atoms of one element cannot be converted to atoms of another element C. The atoms of an element are all identical in both mass and properties, and are different from atoms of other elements. D. Compounds are formed by chemically combining atoms of different elements in fixed proportions. E. Statements B and C.

          1. Which of the following statements is one of the conclusions
reached by Ernest Rutherford from his well-known experiment with
thin sheets of gold?
A. The atom is made up of electrons, protons, and neutrons.
B. The charge of the electron is -1 and that of the proton
+1.
C. Electrons travel in orbits around the nucleus, and each orbit
represents a quantized energy level.
D. Neutrons give stability to the nucleus by counteracting
repulsion between protons.
E. Most of the atom is empty space and its mass is concentrated in
a small volume.
2. Which or which of the original statements of Dalton's theory
is (are) not entirely correct?
A. All matter is made up of atoms.
B. Atoms of one element cannot be converted to atoms of another
element
C. The atoms of an element are all identical in both mass and
properties, and are different from atoms of other elements.
D. Compounds are formed by chemically combining atoms of different
elements in fixed proportions.
E. Statements B and C.

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Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

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03/25/2022

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1. Which of the following statements is one of the conclusions reached by Ernest Rutherford from his well-known experiment with thin sheets of gold? A. The atom is made up of electrons, protons, and neutrons. B. The charge of the electron is -1 and that of the proton +1. C. Electrons travel in orbits around the nucleus, and each orbit represents a quantized energy level. D. Neutrons give stability to the nucleus by counteracting repulsion between protons. E. Most of the atom is empty space and its mass is concentrated in a small volume. 2. Which or which of the original statements of Dalton's theory is (are) not entirely correct? A. All matter is made up of atoms. B. Atoms of one element cannot be converted to atoms of another element C. The atoms of an element are all identical in both mass and properties, and are different from atoms of other elements. D. Compounds are formed by chemically combining atoms of different elements in fixed proportions. E. Statements B and C.

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00:01 So here in this question we are given five statements and we need to find out which of the following is the correct conclusion by ernst rutherford when he did an experiment on the thin sheets of gold.

00:15 So if you look at statement a, that is the atom, this is made up of electrons, protons and neutrons, this is correct, but it is not one of the conclusions by rutherford.

00:27 So this is an incorrect option.

00:29 Next, if we move on to the second statement, then it is given that the charge of electron is minus 1 and for the charge of proton it is plus 1.

00:38 This is also correct, but this is not the conclusion by rutherford.

00:43 So, this is also an incorrect option.

00:46 Then in option c, it is given that the electrons, they travel in orbits around the nucleus and each orbit it represents a quantized energy level.

00:58 This is also correct but this does not come under the conclusions that is provided by rutherford.

01:04 So we can mark it as an incorrect option.

01:07 Next in option d we have that neutrons they provide stability to nucleus and this is also not a part of the conclusion.

01:14 So this is an incorrect option.

01:17 Now in statement e we have that most atoms they have the empty space and the mass is concentrated in a small volume.

01:29 Now, this is a correct statement according to the conclusions that is provided by ernst rutherford.

01:36 Why so? because what we can write here is that.

01:43 So this is for statement e.

01:45 And statement is correct because most of alpha particle they pass through the gold foil without getting deflected.

02:19 Very few particles they were deflected from their path indicating that, so this indicates that the positive charge of an atom occupies in a small space...

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