Generally, the more empty the outer electron shell, the more reactive the element. Helium has two(2) electrons, and is thus full, all the other noble elements has eight(8) electrons in it's outer electron shell, so they are also full. *And for everyone's sake, krypton is not green, but colorless, and forms white crystals when solid.
(a) Jubilees was written between 153 B.C. and the year of Hyrcanus' breach with the Pharisees. (1) It was written during the pontificate of the Maccabean family, and not earlier than 155 B.C., when this office was assumed by Jonathan the Maccabee.
In 1922, Markham's poem Lincoln, the Man of the People was selected from 250 entries to be read at the dedication of the Lincoln Memorial. The author himself read the poem. Of it, Dr. Henry Van Dyke of Princeton said, Edwin Markham's Lincoln is the greatest poem ever written on the immortal martyr, and the greatest that ever will be written. Later that year, Markham was filmed reciting the poem by Lee De Forest in his Phonofilm sound-on-film process.