Phosphorus has three electrons in its 3p sublevel and sulfur has four. Phosphorus should have the lower ionization energy but it does not, sulfur does. What does this provide evidence for?

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce