Observe: most atoms are stable with a configuration of eight valence electrons. this is known as the octet rule. how many valence electrons does each atom have? sodium: chlorine:

Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende

Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis