Please solve it fast I need complete explanation .​

As you move from right to left on the periodic table the atomic radius fill in the blank

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.

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude