The simplest alkane is
A. C2H4.
B. C2H6.
C. CH3.
D. CH4.
Question 2
Following the X-ray emission studies of Harry Moseley in 1913, the order of the elements in the periodic table was based on which of the following?
A) increasing atomic number
B) increasing mass number
C) increasing atomic mass
D) increasing isotopic mass
E) none of the above