PLEASE Answer! Using the periodic table, predict the order of decreasing electronegativity for the elements Al, Ag, Ca, Se, and I.

AL is aluminum, last, that stuff blows up in microwaves 5

Ag is silver, 3

Ca is calsium 2

Se is a metaloid, Selenium,  4

I is Iodine- first 1

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

answer carbon and three oxygen atoms;