Which of the following statements is not true about quantum mechanical model of atom

QUESTION 4

  1. Which of the following statements about quantum mechanics is NOT correct?

      a

    Electrons are negatively charged.

      b

    Electrons have quantized energy levels. 

      c

    Electrons are arranged in circular orbits around the nucleus.

      d

    An electron’s location is described in terms of probability.

      e

    The mass of an electron is often considered negligible because it is so small.

Chemistry

Atomic Structure And Periodicity. 4RQ

Q: The region around the nucleus of an atom where the probability of finding the electron is high is…

A: The region around the nucleus of an atom where the probability of finding the electron is high is…

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A: A multiple choice question based on Bohr model, which is to be accomplished.

Q: if an energy level has d orbitals how many orbitals will there be? what is the maximum number of…

A: Click to see the answer

Q: As Bohr understood them, the dark spaces in the atomic spectrum of hydrogen corresponded to a)…

A: Click to see the answer

Q: . The region around the nucleus of an atom where the probability of finding the electron is high is…

A: The region around the nucleus of an atom where the probability of finding the electron is high is…

Q: n the Bohr model for a hydrogen atom, an electron revolving in the third excited state. If the…

A: a) The total energy of the electron in the second excited state has to be calculated.

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A: The solution is as follows :

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A: Radiant energy is emmited or absorbed discontinuously in the form of small energy bundles or energy…

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A: The quantum concept applied to matter and energy has to be illustrated below.

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A: Atomic structure of element contains nucleus and electrons around it .

Q: c. the total electron configurations d. the total orbital diagram (can be abbreviated) e. magnetic…

A: Click to see the answer

Q: Which two representations are most consistent with the model of an atom that uses probability to…

A: We have to find the representations where probability of finding an electron is maximum and minimum.

Q: The circles in the diagrams below represent energy levels in an atom, and the arrows show electron…

A: In an atom, the electrons are in constant motion around the specific nucleus in specific orbits or…

Q: nan atom in its lowest type your answer. state type your answer. a photon, an electron jumps to a…

A: Ash

Q: Complete the following by choosing the correct word. The atomic theory was given by H' and H have…

A: Atomic theory was given by Dalton. Both have different mass number so they are isotopes.

Q: What is the principal quantum number?

A: Quantum numbers are set of numbers which are used to describe the position and energy of the…

Q: What aspect of the Bohr model is correct? (i.e. agrees with the quantum mechanical model) electrons…

A: Bohr Atomic Model has been presented by Neil Bohr in 1913. This model explains that the electrons…

Q: Which statement best describes an occupied orbital, according to the quantum mechanical model?  (a)…

A: The three-dimensional region of space that indicates where there is a high probability of finding…

Q: Why is the quantum-mechanical model of the atom important forunderstanding chemistry?

A: The quantum-mechanical model of the atom important for understanding chemistry has to be explained…

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A: Hydrogen is an atom having atomic number 1. Its symbol is 'H'.

Q: a) Which diagram shows electron transitions that involve the most energy? b) Explain why this…

A: Click to see the answer

Q: In the Bohr model for a hydrogen atom, an electron revolving in the third excited state. If the…

A: Energy of an e- in nth orbital of hydrogen atom is given by=-13.6n2eV a)The 2nd excite state of…

Q: Electromagnetic radiation with a wavelength of 640 nm appears as orange light to the human eye. The…

A: Since the relationship between the frequency and wavelength is given by  f X λ = c  where f =…

Q: al, electrons are i the wavelength

A: According to the question, we have: Kinetic energy = K.E = 4.10*10-21 J Binding energy = B.E =…

Q: what is the principal quantum number for 22nd electron placed into cobalt in the ground state

A: The principal quantum number tells us about the main shell in which the electron resides.

Q: Niels Bohr's model of the atom described the: A. position of electrons in relation to the nucleus .…

A: Bohr model of Hydrogen atom: Negatively charged electron orbit the positively charged nucleus in…

Q: Discuss Einstein’s theory of Photoelectric effect. What conclusion can be drawn from Einstein’s…

A: Click to see the answer

Q: Identify the following individuals and their contributions to the development of quantum theory:…

A: Click to see the answer

Q: For any given principal energy level, what is the maximum number of electrons that can exist in the…

A: We know that ,  Each orbital contains a maximum of  2 electron.

Q: The complete orbital notation diagram of an atom is shown. based on the diagram what values can be…

A: Click to see the answer

Q: which of the following statements are true according to the quantum mechanical model of the atom? a.…

A: Click to see the answer

Q: A spin up electron is in a clover leaf shaped orbital with a principle quantum number of 4. What is…

A: Since the clover leaf shaped orbital are d orbitals. Hence the value of l i.e orbital angular…

Q: What are Core Electrons? Give some examples?

A: The electrons in an atom can be divided into two categories. They are valence electrons and core…

Q: Is the quantum-mechanical model of the atom important for understanding chemistry? Why?

A: Concept introduction: Niels Bohr who gave Bohr's model and Erwin Schrodinger who gave…

Q: (A) A photon has a wavelength of 599 nm. Calculate the energy of the photon in joules. Enter your…

A: Since you have posted multiple un-related questions, we are entitled to answer the first only.

Q: To what energy level do the electrons drop when visible light is produced?

A: The energy of emitted photon is equal to the exact energy that is lost by the electron moving from…

Q: What is the complete electron configuration for Te?

A: The answer to the following question is given as:

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    Which statement is correct about quantum mechanical model of the atom?

    The correct answer is 1, i.e. The orbits contain sub-shell which in turn contains orbitals. Explanation: Quantum mechanical model: An Austrian physicist Erwin Schrodinger took the Bohr atomic model (it shows that the electrons in atoms are in orbits of differing energy around the nucleus), one level further in 1926.

    Which of the following is not the important feature of quantum mechanical model of atom?

    Energy of electron is not quantized whereas the electron revolve in quantized energy orbit.

    What are the main features of quantum mechanical model of an atom?

    Features of quantum mechanical model: As per Heisenberg's Uncertainty principle, the exact position and momentum of an electron cannot be determined. So the only probability of finding an electron at a position can be determined and it is |ψ|2 at that point where ψ represents the wave-function of that electron.

    What does the quantum model not explain?

    This atomic model is known as the quantum mechanical model of the atom. Unlike the Bohr model, the quantum mechanical model does not define the exact path of an electron, but rather, predicts the odds of the location of the electron.

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