What is true about ionic compounds? Select all that apply.

A. Properties of the compound are different than the properties of individual atoms that make the compound.

B. Electrons are not involved in the formation of an ionic bond, since ions do not have valence electrons.

C. Electrons are not free to move.

D. They may have a positive or negative charge.

the answer for sodium is 0.186

the answer for rubidium is 0.251

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.