How many electrons in an atom can share the quantum numbers n = 1, m subscript l = 0? a. 1 b.2 c.3 d.6

Which of these is the result of scientific research and not engineering? a. a new shoe design that features air cushioning for more comfort and protection b. the creation of glass with uv protection. c. a conclusion about diet commonalities among diabetics. d. the development of a smaller, more compact missile.

Calculate the number of molecules present in 0.750 mol of mgo.

What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist