Isotopes of an have different physical properties
from other
of the same elements such as...
and...​

Isotopes of  same element have different physical properties such as melting points and boiling points

Explanation:

Isotopes represents two or more forms of an element. These isotopes have equal number of protons but different number of neutrons. They have same chemical properties but their physical properties may vary owing to difference in the mass number.

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.