Sulfur silicon sodium thallium use the periodic table to predict which element has the most metallic character.

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space. b. we'll know it immediately because it will be brighter than the full moon in the sky. c. we won't know about it until 600 years from now. d. none of the above.

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change