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The concept of the atom -
a fifth atomic type must exist which Aristotle later called `ether' -
matter was fundamentally constructed out of atoms. -
The first modern chemist. -
the total mass of products and reactants in a chemical reactions is always the same -
all objects are made of particles called atoms, and that they are solid spheres that cannot be divided further into smaller particles -
Elements consist of indivisible small particles (atoms). -
arranged in order of increasing atomic weight, -
Discovered radium, Polonium -
central massive positive entity -
Different atoms and molecules can emit or absorb energy in discrete quantities only. -
of positive and negative charges. -
is one of several historical scientific models of the atom. -
This became known as the photoelectric effect, and it would be understood in 1905 by a young scientist named Albert Einstein. -
the photoelectric effect. -
there is a fundamental electric charge
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He discovered alpha and beta rays, set forth the laws of radioactive decay, and identified alpha particles as helium nuclei. -
the true basis of the periodic table -
He made foundational contributions to understanding atomic structure. He received the Nobel Prize. -
H ^ ψ = E ψ \hat{H}\psi=E\psi H^ψ=EψH, -
H ^ ψ = E ψ \hat{H}\psi=E\psi H^ψ=EψH -
cannot know exactly where an electron is at any given time -
the uncertainty principle, -
the existence of neutrons -
Its a novel by Brazilian author Paulo Coelho
