How many balence electrons are in oxygen?

How do you calculate the extent of purification? What is it that its units are newtons per meters? Is it easier to squeeze a bottle full of water or an empty bottle? The part of a atom with a positive charge? Monomers called amino acids make up proteins one type of organic? What is the metal part on a belt? Identify a strategy to reduce the barrier of inadequate feedback? Why does salad become soggy and wilted when the dressing has been on it for awhile explain in terms of osmosis? Is it never safe to watch a solar eclipse with the naked eye? Hairlike parts that spin to push a bacterium through water or other liquids? What is the definitions of Mt Taal? Do all galaxies have gravity? Who proposed that the elements of a compound are held together by electric forces? Who made the biohazard? What moves in response to vibrations of the fluids in the ear? What are the colours in a rainbow paddlepop? Which has a higher boiling point 0.50 NaCl or 0.50 MgCl2? What are the uses of mucilages? What 2 body systems work together so you can talk? How do New Orleanians talk?

How many balence electrons are in oxygen?