Where would the highest-energy electron be found in an atom of hydrogen?
a. in the second spherical orbital
b. in the dumbbell-shaped orbital of the y axis
c. in the spherical orbital closest to the nucleus
d. in the dumbbell-shaped orbital of the z axis
e. in the dumbbell-shaped orbital of the x axis
Answer: c. in the spherical orbital closest to the nucleus
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A. constitutive B. induced C. chemical D. active
Which of the following explains why Ginkgo biloba is often planted in public spaces?
a. Ginkgo biloba trees are resistant to air pollution. b. Male ginkgo biloba trees have a pleasant smell. c. Female ginkgo biloba trees produce attractive flowers. d. Ginkgo biloba trees require minimal water.
Four of the five answers can be detected by testing the urine. Select the exception
a. ovulation b. pregnancy c. water-soluble drug use d. exposure to pollutants e. white blood cell count
Which of the following is an example of a prosthetic group?
A) a zinc ion B) a glycine residue C) a polypeptide chain D) a nickel catalyst E) carboxypeptidase A