What was one important discovery that the curies made?
a material’s radioactivity cannot be c...
Chemistry, 02.09.2019 13:30 meganwintergirl
What was one important discovery that the curies made?
a material’s radioactivity cannot be changed by altering the material physically.
a material’s radioactivity can be weakened or intensified by changing it chemically.
radioactive materials generally contain radium or polonium.
radioactive materials are found only in the form of salts.
Answers: 1
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The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.
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