Which one of the following is a physical property of oxygen? o molecular axygen condenses at 90.2 k oit is the 3rd most abundant element in the universe by mass o it is composed of three stable isotopes o it axidizes carbohydrates into carbon diaxide and water.

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explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

"the periodic table is arranged in order of atomic number."