Which of the following is likely to be chemically unreactive?
a. chlorine (7 valence electrons)
b. calcium (2 valence electrons)
c. argon (8 valence electrons)
d. carbon (4 valence electrons)
e. potassium (1 valence electron)
C
You might also like to view...
The location where a disease-causing organism is normally found is called the ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following organisms do NOT
reproduce cells by mitosis?
a. plants b. fungi c. animals d. archaea e. plants and fungi
The size of a population is affected by all of the
following EXCEPT a. biotic potential. b. trophic level. c. carrying capacity of the environment. d. death rate. e. birth rate.
In the early 1950s, James Watson and Francis Crick ____
a. were awarded the Nobel Prize for Medicine or Physiology b. combined all of their previous research in order to explain the structure of DNA c. began to work out the structure of DNA by organizing the information about DNA that was already available d. produced X-ray diffraction photographs from highly purified DNA samples e. isolated two strains of S. pneumoniae and used them to further research the structure of DNA