Answer:
Number of neautrons
Explanation:
Atoms from two different elements may have the same number of neutrons, but never the same number of protons. The number of protons is unique to the element and represents the atomic number. (sorcastic.org)
The attractive force between all matter in the universe is gravity.
It would still be eastward because The direction of the velocity vector is always in the same direction as the direction which the object moves.
