The former British Empire is now known as the Commonwealth of Nations to avoid recalling p
A、Yellow represents “earth” in the five elements theory.
B、Yellow is exclusively used by the royal family.
C、Yellow was always the special color of royal palaces, like theForbidden City.
D、Yellow can also be seen in modern clothes as an element of tradition.
A、act together to gather light energy
B、transfer light energy down an electron transport system
C、are closely associated with reaction-center chlorophyll molecules
D、all of the above
E、none of the above
A、the outermost electron becomes excited and moves to a higher-energy orbital
B、it immediately donates an electron
C、all its electrons remain in the ground state
D、fluorescence is the first event to occur
E、the molecule donates all its electrons
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