https://padlet.com/crislerdensong/5i6hk8zeqpf en-us 2018-10-08 14:13:44 UTC 2018-10-10 19:39:22 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Watchclock.png crislerdensong https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/290315570 His theory was discovered in the 5th century B.C. in Greece. The atomic theory stated that everything is composed of atoms.]]> 2018-10-08 14:20:48 UTC https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/290315570 crislerdensong https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/290319957 In 1869 in Russia Mendeleev formulated the periodic table of elements, and properties of the elements.]]> 2018-10-08 14:28:23 UTC https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/290319957 crislerdensong https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/290323523 A continuation of the atomic theory, stated in 1803 in manchester, that all matter was composed of atoms, and introducing his ideas into Chemistry.]]> 2018-10-08 14:34:17 UTC https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/290323523 crislerdensong https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/290325588 1897, England. "Atomic Theory" - discovered the electron, and demonstrated that rays were negatively charged. ]]> 2018-10-08 14:38:42 UTC https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/290325588 crislerdensong https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/291452116 1911, England. "Rutherford Model"- Also known as Planetary Model. Discovery that atoms have a small charged charged nucleus, surrounded by space, then circled with electrons.]]> 2018-10-10 19:31:23 UTC https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/291452116 crislerdensong https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/291453415 1913 Denmark. "Bohr Model"- discovered that energy is only transferred only in certain, well defined quantities.]]> 2018-10-10 19:34:47 UTC https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/291453415 crislerdensong https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/291454556 1926, Austria. Took "Bohr Model" further, discovered the Quantum Mechanical Model of an atom by using mathematical equations to find the likelihood of an electron in a certain position. ]]> 2018-10-10 19:37:03 UTC https://padlet.com/crislerdensong/5i6hk8zeqpf/wish/291454556