Periodic Table

the area surrounding the nucleus of an atom

where the electrons move around the nucleus

the electrons in the outermost/last energy shell

electrons with the most energy

electrons used in bonding atoms together

atoms with the same number of protons and electrons, but a different number of neutrons

atoms of the same element but with a different atomic mass

atoms with the same number of protons and electrons, but a different number of neutrons

atoms of the same element but with a different atomic mass

created a model of the atom that show electrons on specific energy levels, but can jump from one energy level to another.

(think- the atom picture from the Big Bang Theory show or Jimmy Neutron)

is a representation of the valence electrons of an atom that uses dots around the chemical symbol of the element