Rosenbergs executed. On this day in 1953, Julius and Ethel Rosenberg, who were convicted of conspiring to pass U.S. atomic secrets to the Soviets, are executed at Sing Sing Prison in Ossining, New York. Both refused to admit any wrongdoing and proclaimed their innocence right up to the time of their deaths, by the electric chair.
Bonds between linking nitrogenous bases of two DNA strands are Hydrogen bonds with 3 H-bonds connecting cytosine and guanine and 2 H-bonds connecting adenine and thymine, while the bonds between the stacking of DNA are kept in close contact via van der waals interactions.
Atomic nitrogen has 5 valence electrons and 4 valence orbitals (2s, 2p x, 2p y, and 2p z). In the Lewis structure there is a triple bond between the nitrogen atoms and a non-bonding pair of electrons on each.et's look at the Lewis structure of and N 2. Because there are 4 different valence orbitals on each nitrogen atom, need to see which orbitals have the same symmetry to overlap in a sigma sense. Consider the two atoms along the z axis.