1
Q
atom
A
the smallest unit of an element the maintains the properties of that element.
2
Q
electron
A
a subatomic particle that has a negative charge.
3
Q
nuclues
A
in physical science, an atom’s central region, which is made up of protons and neutrons.
4
Q
electron cloud
A
a region around the nucleus of an atom where electrons are likely to be found.
