The Absorption & Emission of EM Radiation (OCR GCSE Physics A, Combined (Gateway Science Suite)): Quizzes
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Practise the questions
8 questions from this quiz
What happens to electrons when an atom absorbs electromagnetic radiation?
What happens to electrons when an atom absorbs electromagnetic radiation?
They become excited
When an atom absorbs EM radiation, electrons move to which energy level?
When an atom absorbs EM radiation, electrons move to which energy level?
Higher energy level
What has happened if an electron moves to a higher orbit, further from the nucleus?
What has happened if an electron moves to a higher orbit, further from the nucleus?
The atom has absorbed EM radiation
When an atom emits EM radiation, electrons move to which energy level?
When an atom emits EM radiation, electrons move to which energy level?
Lower energy level
What has happened if an electron falls to a lower orbit, closer to the nucleus?
What has happened if an electron falls to a lower orbit, closer to the nucleus?
The atom has emitted EM radiation
What happens if an electron gains enough energy?
What happens if an electron gains enough energy?
It can leave the atom to form a positive ion
Over what range of frequencies can atoms absorb and emit EM waves?
Over what range of frequencies can atoms absorb and emit EM waves?
A wide range
During emission of EM radiation, which direction do electrons move relative to the nucleus?
During emission of EM radiation, which direction do electrons move relative to the nucleus?
Closer to the nucleus