which of the following aquantum numbers do you need to know when you want to determine the energy level of an electron
A. horizontal quantum number
B. azimuthal quantum number
C. spin quantum number
D. principal quantum number
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An electron's arrangement in an atom can be described by four quantum numbers: n, l, m_l_ and ms. These relate to energy level, electron subshells, orbital direction and spin, respectively.
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✓ Option (D) Principle Quantum Number
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