The amount of inertia an object has depends on its speed true or false

The amount of inertia an object has depends on its mass. The more mass an object has, the more inertia. Inertia is an object's tendency to do nothing.

False:

Inertia is the idea of an object that is moving will want to stay moving, or resist a change in direction. Inertia is more dependent on mass than speed, since a heavier object (more mass) will have more inertia. Imagine a bowling ball and a tennis ball are rolling across the floor, and you have to shoot one with a dart to change their direction. Well of course the tennis ball is going to change direction easier because it has less mass, which also means it has less inertia.

The problem here is that according to aufbau principle before 3d orbital 4s subshell comes.after filling 3p orbital with electrons you have 4 electrons left, you place two in 4s with opposite spin and the other two in 3d in any of its two orbitals of total five orbitals with the same spin.