If N and O were to bond, the difference in electronegativity would be and we would expect the bond to be
ionic, covalent)

The bonds between nitrogen and oxygen are covalent bonds made from sharing electron pairs. The electronegativity of oxygen is 3.5.

chemical properties are the characteristic of matter which can only be observed by changing the chemical identity of a sample like flammability reactivity and toxicity.

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?