Things I learned from taking the practice MCAT # 11 Test
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What does the angular momentum quantum number, L, dictates? | The angular momentum quantum number, L, is the quantum number that dictates the "shape" of an electron orbital.
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| The angular momentum number L is the same as the number of angular ..... ? | It is the same as the number of angular NODES (also known as the regions of zero probability) present in the electron orbital.
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| What is the name of the first, or principle, quantum number in general chemistry? What is the designated letter for this quantum number? | The first, or principle, quantum number is called the shell number. The designated letter for the first quantum number is N.
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| What does the first, or principle, electron quantum number tell us about the atom? | The shell number, n, is the electron quantum number that tells us the SIZE & ENERGY of an electron orbital. Loosely speaking, an orbital describes a three dimensional region around the nucleus in which the electron is most likely to be found.
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| What can be the possible values of the first, or principle, electron quantum number? | The values of the shell number, n, can be any whole number starting with 1. Note; the greater the value of n, the greater the electron's energy and average distance from the nucleus.
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| What is the name of the second quantum number in general chemistry? What is the designated letter for this quantum number? | The second quantum number is called the subshell number, and it is denoted by the letter L.
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| What does the second electron quantum number tell us about the atom? | The second quantum number, the subshell number, describes the SHAPE (and energy) of an electron's orbital.
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| What can be the possible values of the first, or principle, electron quantum number? |
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