1. Calculate the energy of interaction between a lithium ion and a magnesium ion at a distance of 4.55x10-10m

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

What type of organic molecule comprises the majority of a potato?

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.