physical and chemical properties that help to define and identify a given substance. Density, freezing point and boiling point are characteristic physical properties. Reactivity is a characteristic chemical property.
In summary, Phase Properties Phase Particle Properties Proximity Energy Motion Volume Shape Solid Liquid Gas close little vibrational definite definite close moderate rotational definite indefinite far apart a lot translational indefinite indefinite
ONE state of matter they didn’t teach you about in school… Until Now!
In 1924 (84 years ago), two scientists, Albert Einstein and Satyendra Bose predicted a 5 th state of matter which would occur at very, very low temperatures.
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The 5 th state of matter: Bose-Einstein Condensate Finally, in 1995 (only 16 years ago!), Wolfgang Ketterle and his team of graduate students discovered the 5 th state of matter for the first time. Ketterle and his students
In a Bose-Einstein condensate, atoms can no longer bounce around as individuals. Instead they must all act in exactly the same way, and you can no longer tell them apart!
Here is a picture a computer took of Bose-Einstein Condensation The big peak happens when all the atoms act exactly the same way! (We can’t see Bose-Einstein condensation with our eyes because the atoms are too small)
Some other computer images of Bose-Einstein Condensates…