Answer:garden steps that get closer together the further they are from teh ground
Explanation:
Quantized energy levels are discrete and get closer together the further they are from the nucleus
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Answer:
The Periodic Law shows that the physical and chemical properties of the elements recur in a systematic and predictable way when the elements are arranged in order of increasing atomic number.
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Answer:
physical properties
Explanation:
temperature, volume and colour are all physical properties