How did the Heisenberg uncertainty principle contribute to the idea that electrons occupy “clouds," or "orbitals”?

An observation that requires measurement is called quantitative observable or qualitative

What is the atomic number of an atom that has 6 protons

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles