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objects of matter have to derive atoms from 1 of 5 different solid objects. -
he thought that everything was made from atoms -
he believed that everything was made out of the four atoms, earth fire water and air. he did not believe that things were made out of atoms. -
he believed that gas' volume decreases when pressure increases -
everything's total mass is always the same -
he believed that atoms were the smallest particles of matter and also that they cannot be created or destroyed. also that all atoms of the same element were the same -
they made some parts of chemistry that is used today. some of it is instruments, some is what melts different substances. -
when all elements are put together in numerical order it can form a pattern -
quantifying an electrons charge -
found electrons -
when light with a certain energy hit a metal an electron may be locked loose -
einstein proved that atoms exist mathemathically he also proved liquids are made of molecules -
the energy of light is proportional to the frequency -
they discovered polonium and radium -
atoms are mostly hollow and that the majortiy of their matter comes from the nucleus. -
the atomic numberis number of positive charges in the nucleus of an atom -
he developed the electron cloud model -
wave equation
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he created the model of the atom -
exsistance of neutrons