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The qualities are divided up into seven intervals. -
It was an accident. I was found with radium. -
The electron is a negatively charged particle within the cloud of an atom. -
The proton was discovered by Ernest Rutherford. The word proton came from the Greek work "protos". -
The electrons are in a cloud surrounding the protons. -
The gold is mainly empty. While others pass right through, the gold did not. -
Small dense nucleus surrounding -
We will never know the speed or position of a particle perfectly. -
James Chadwick introduced the uncharged partical.