Positively charged nucleus made from protons and neutrons (nucleon/mass number)
Electrons surround nucleus
electrons held near nucleus by electrostatic force
Electron mass: 9.11x10^-31kg, proton mass: 1.67x10^-27kg, neutron mass: 1.67x10^-27kg
Electron charge: -1.6x10^-19c, proton charge: 1.6x10^-19c, neutron charge: 0c
Isotopes: same number of protons, diffrent number of neutrons
Specific charge=Charge of nucleus/mass of nucleus
Comments
No comments have yet been made