charge of electrons
charge proton
nucleus
charge of neutron
valence electrons
Stable Atom
Reactive Atom
cloud
atomic mass =
happy atom! Has a full valence shell (8ve-)
positive +
sad atom, doesn't have a full valence shell (less then 8) so it wants to bond with others
protons + neutrons
area surround the nucleus
negative -
electrons farthest from the nucleus, responsible for reactivity/bonding
no charge, 0
center of an atom, contains protons and neutrons