Which metalloid element has the atomic number 5?

What do we call a person who sees the glass as half empty rather than half full? Which itchy outdoor pest is the tiny red larva of a harvest mite? Varney Air Lines, founded by Walter Varney in 1926, was a predecessor of which major U.S. airline? Unlike conscious suppression, which defense mechanism unconsciously banishes unacceptable impulses from awareness? Unlike the "naked" seeds of gymnosperms such as conifers, the seeds of flowering plants are enclosed. What are flowerin… In 1976's "The Shootist", Lauren Bacall tells which actor's dying gunfighter, "You seem like a man accustomed to giving… U.S. officials asked which Italian patriot to serve as a Union general in the Civil War? Used by sailors and aviators, which unit of distance equals about 1.15 ordinary miles?