blank.
1.
2.
is the smallest unit that matter can be broken down into.
can be defined as the combinations of two or more atoms which are
held together by chemical bonds.
3.
particles are particles that are smaller than the atom.
4.
particies found in an atom.
and
are the three main subatomic
5. Protons have a
charge and is determined by the atomic
6. In a neutral atom, the number of proton and
are the same.
7.
have no electrical charge. It is determined by subtracting the mass
number to the number of protons.​