proton proton: the positively charged particle found in the nucleus of an atom
TRANSCRIPT
PERIODPeriods are the rows going across. They are numbered from 1-7 and indicate how many energy levels (shells/orbitals) the element has.
ELECTRONElectrons surround the nucleus of an
atom in the electron cloud.
Electrons have a (-) Negative charge!
ISOTOPE Isotopes are elements that have more neutrons than the original element but still share the same chemical properties.
GROUPThe columns on
the periodic table.
Groups indicate how many valence
electrons each element in that column have.