Which of the following is not a true statement about atomic, Ask an Expert

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Which of the following is NOT A TRUE STATEMENT about atomic structure?

a, The photon energy for transitions between two energy levels ( e.g. between the ground state and the first excited state) is different for absorption (excitation) and emmission (deexcitation).

b. Atoms do not always remain in their lowest energy state.

c.Transitions between two energy levels can only occur at one specific photon energy.

d. An atom is in an excited state if it has at least one electron at a greater than normal distance from its parent nucleus.

e. An ion is an atom that has either gained or lost electrons.

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