El estado cuántico del último electrón del átomo X es (4,1,0,+1/2). Determine: a) El periodo y la familia del elemento X b) El número atómico (Z) c) Identifique el elemento

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?