Milli means 1 thousandth or 1/1000
Answer:
protons
atomic number
Note: The same atomic number can be associated with several different values of atomic mass, but an element can have only 1 atomic number,
Momentum has a magnitude and a direction.
Its magnitude is (mass) x (magnitude of the velocity)
Its direction is the same as the direction of the velocity.
The thing you should memorize is: Momentum = (mass) x (velocity). P=mv
