Which of the following is NOT a limiting factor for the number of possible compounds? all elements have a different atomic number
many elements are unable to react with other elements
some elements are less reactive than others

Which substances have the lowest melting points: ionic covalent, or metallic

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax