chem big atomic structure 2
who discovered electrons?
J.J. Thomson
what was the last subatomic particle to be discovered and who discovered it?
nuetron and james chadwick
first subatomic particle and who
J.J. Thomson and electron
difference between mendleev and newlands dis
Mendeleev left gaps for undiscovered elements and correctly guessed their properties
who did rutherford use?
his students Geiger and Marsden
what did rutherford do
he discovered that an atom had a nucleus and that electrons orbited in shells around. He did this with a gold leaf experiemnt.
difference between mendeleev and newlands organis
newlands was strictly by atomic mass, and forced elements into the octave law, mendeleev also ordered by mass, but prioritised groups of elements with similar properties.
Dalton
believed that atoms were unique tiny spheres that could not be created, destroyed or divided
bohr
suggested electrons orbited the nucleus at specific distances