- What is the symbol for the element named after the Polish woman who discovered and named Polonium?
- What is the symbol for an alkaline earth metal that has 12 electrons in a neutral atom?
- If a car (2,100 lbs) is traveling at 80 mph, what is its kinetic energy?
- If a truck (5,000) lbs is traveling at 50 mph, what is its kinetic energy?
- What is the kinetic energy of an electron (9.109 x 10-31 kg) traveling at 3.03 x 107 m/sec?
- What group of elements reacts violently with water?
Be sure to try the practice problems on the Engrade site. You need a password and login, for Engrade, so send an email to Dr. Stone if you don't have yours.
Answers for Elements and Energy Practice