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.
Ode: Intimations of Immortality. Ode: Intimations of Immortality from Recollections of Early Childhood (also known as Ode, Immortality Ode or Great Ode) is a poem by William Wordsworth, completed in 1804 and published in Poems, in Two Volumes (1807). The poem was completed in two parts, with the first four stanzas written among a series of poems composed in 1802 about childhood.