What’s the symbol of the element that has 8 protons, 9 neutrons, and 8 electrons

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false