Question

multiple choice question
what does the principal quantum number indicate?
o the relative size and energy of the atomic orbital
the shape of the atomic orbital
the spatial orientation of the atomic orbital
the magnetic properties of the atomic orbital

Explanation:

The principal quantum number (\(n\)) describes the energy level and size of an atomic orbital. As \(n\) increases, the orbital becomes larger and the electron in it has higher energy. The shape of the orbital is determined by the angular - momentum quantum number (\(l\)), the spatial orientation by the magnetic quantum number (\(m_l\)), and magnetic properties (related to electron spin) by the spin quantum number (\(m_s\)).

Answer:

the relative size and energy of the atomic orbital