Which set of elements from below would you expect to have the most 4 properties in common with each other? Explain your answer. Set One: neon, argon, krypton, xenon Set Two: boron, bromine, barium, bohrium
Set Three: strontium, scandium, antimony, tin​

Two things that biomedical has invented or innvated

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)