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Physics

Protons,electrons and neutrons revision notes

QuestionAnswer
What is the only charge that can move from an atom Electrons
What is the charge of a neutron 0, neutrons are neutral
What is the charge of a proton +1, a proton is positive
What is he charge of an electron - 1, an electron is negative
What is the charge of an earthed wire 0, it is neutral
what is most of an atom made up of empty space
where is nearly all of the mass concentrated the nucleus
for something to be neutral how many electrons and protons do you need you need equal amounts of protons and neutrons
when friction is created between atoms what gains enough strength to move the electrons
for an object to become positively charged it must lose or gain electrons lose
for an object to become negatively charged it must lose or gain electrons gain
can positive charges move NO
Created by: pipd