Please identify and explain the major poetic elements that Robinson uses in "Richard Cory." How many important major poetic elements are in this...

As the
previous answer stated,is a major poetic element found in "."  Throughout the
metaphor, Richard Cory is compared to a regal king.  Readers are told that he is "richer
than a king."  Furthermore the people see him as glittering and "imperially
slim."  What's interesting about the metaphor of Cory being compared to kingly wealth is
how it also makes a comparison between wealth and loneliness/depression.  Cory's money
presumably allows him to do many things, but it can't buy him happiness; therefore, he commits
suicide at the poem's conclusion.  

The poem
also makes use of .  Anaphora is a repetition of words or phrases at the beginning of lines. In
"Richard Cory," the word "and" is used to start 6 lines.  The poem is only
16 lines to begin with, so that means "and" starts more than 1/3 of the lines in the
poem.  The effect is that the poem begins to read like a list.  The narrator tells readers how
great the man is, and he just piles on thing after thing that makes Cory so great.  That really
helps with the poem's shocking ending.  Cory is so great and amazing, yet he still kills
himself.  

As for the poem's structure, "Richard Cory" is a
straightforward poem.  It's made up of 4 quatrains, and each quatrain follows an ABAB rhyme
scheme.  Each line consists of 10 syllables, and those are broken into 5 iambic feet.  That
makes the poem written in iambic pentameter.  An iambic foot is made when an unstressed syllable
is followed by a stressed syllable.  If we use bold text to
indicate a stressed syllable, the first line of the poem reads as follows:

Whenever Richard Cory went down town.

The rhythm and meter is very regular throughout this poem.
 Combined with the regular rhyme scheme, the poem sort of lulls readers into familiar territory.
 We don't expect anything shocking or different by the poem's end.  Then the narrator finally
throws readers off balance with the poem's final line.  

Went home and put a bullet through his head.

It
still follows the poem's rhythm and rhyme, but the line's content is a complete
shock.