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Questions and Answers
Which quantum number determines the energy level of an electron in an atom?
Which quantum number determines the energy level of an electron in an atom?
Which quantum number describes the shape of an orbital?
Which quantum number describes the shape of an orbital?
For an electron in an atom with n = 3, what are the possible values of l?
For an electron in an atom with n = 3, what are the possible values of l?
For an electron in an atom with l = 2, what are the possible values of ml?
For an electron in an atom with l = 2, what are the possible values of ml?
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How many atomic orbitals are possible for an electron in an atom with n = 4?
How many atomic orbitals are possible for an electron in an atom with n = 4?
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Which scientist proposed the first atomic model?
Which scientist proposed the first atomic model?
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What did J.J. Thomson discover through his experiments with cathode rays?
What did J.J. Thomson discover through his experiments with cathode rays?
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Which scientist conducted the gold foil experiment and discovered the nucleus of an atom?
Which scientist conducted the gold foil experiment and discovered the nucleus of an atom?
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What is the main difference between the Bohr model and the quantum mechanical model of the atom?
What is the main difference between the Bohr model and the quantum mechanical model of the atom?
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What is the atomic number of an atom?
What is the atomic number of an atom?
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Study Notes
Quantum Numbers and Atomic Orbitals
- The principal quantum number (n) determines the energy level of an electron in an atom.
- The azimuthal quantum number (l) describes the shape of an orbital.
- For an electron in an atom with n = 3, the possible values of l are 0, 1, and 2.
- For an electron in an atom with l = 2, the possible values of ml are -2, -1, 0, 1, and 2.
Atomic Models and Experiments
- J.J. Thomson proposed the first atomic model, known as the plum pudding model.
- Through his experiments with cathode rays, J.J. Thomson discovered the electron.
- Ernest Rutherford conducted the gold foil experiment and discovered the nucleus of an atom.
- The main difference between the Bohr model and the quantum mechanical model of the atom is that the Bohr model assumes electrons occupy specific energy levels, whereas the quantum mechanical model introduces wave functions and orbitals.
Atomic Structure
- The atomic number of an atom is the number of protons in the nucleus of an atom.
- The number of atomic orbitals possible for an electron in an atom with n = 4 is 16 (1s, 3p, 5d, and 7f orbitals).
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Description
Test your understanding of quantum numbers with this quiz! Learn about the different quantum numbers and their roles in determining energy levels, angular dependence, orientation in space, and spin. Challenge yourself to identify the values and properties associated with each quantum number.
