HURRY IM TIMEDAnya knows the velocity of an object. What else does she need to know in order to find the object’s momentum? its mass its height its density its speed

What do the atoms of elements in the same group have in common? a. they have the same atomic numbers. b. they have the same average atomic masses. c. they have the same number of electron shells. d. they have the same number of electrons in their outermost shells.