PiaBea131
PiaBea131 PiaBea131
  • 24-04-2018
  • Physics
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Can someone help me on number 4 and 5?

Can someone help me on number 4 and 5 class=

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galvinreagan
galvinreagan galvinreagan
  • 24-04-2018
Protons are positive ,neutrons doesn't have charge ,electrons has negative charge.the mass of an proton is very small the mass of a neutron is a bit bigger than a proton and the mass of a electron is the smallest.

because there is a lot of atoms in the substances
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