14. How many neutrons are found in an atom of Iron? 15. What element has 15 protons?
16. What element has 80 protons?

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

Cells destroy body cells infected by a virus or bacteria.

What form of anesthetic was used for field surgery