positive charge

found outside the nucleus

found inside the nucleus

p+

-1

found inside the nucleus

found outside the nucleus

+1

negative charge

e-

positive charge

negative charge

found inside the nucleus

found outside the nucleus

no charge

number of neutrons in an atom

number of protons in an atom

number of protons and neutrons in an atom

number of protons and electrons in an atom

number of protons, neutrons and electrons in an atom

number of neutrons in an atom

number of protons in an atom

number of neutrons and protons in an atom

number of protons and electrons in an atom

number of neutrons, protons and electrons in an atom

atoms of the same element with different atomic numbers

atoms of the same element with a different number of electrons

atoms of the same element with a different number of protons

atoms of the same element with a different number of neutrons

outside of an atom where electrons travel in energy levels

center of an atom containing only protons

center of an atom containing protons and neutrons

outside of an atom where neutrons travel in energy levels

outside of an atom where electrons travel in energy levels

center of an atom containing only protons

center of an atom containing protons and neutrons

outside of an atom where protons travel in energy levels