Is the following sentence true or false? some information about an object or process may be missing from a model.

What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer