Dr. Ecksplor discovers a strangely colored orchid in Brazil. Professor Seeker find an orchid of the same color in Ecuador. The two scientist wonder whether the two flowers contain the same pigment. They feel sure that the pigment does not dissolve in water. (a) why do they feel sure that the pigment does not dissolve in water?
(b) Describe an experiment which they could do to find out whether the two orchids contain the same pigment.

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

What is the maximum number of electrons that an atomic orbital can contain?

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.