Consider the following statements about first ionization energies: because the effective nuclear charge for mg is greater than that for be, the first ionization energy of mg is greater than that of be. the first ionization energy of o is less than that of n because in o we must pair electrons in one of the 2p orbitals. the first ionization energy of ar is less than that of ne because a 3p electron in ar is farther from the nucleus than a 2p electron in ne. which of the statements (i), (ii), and (iii) is or are true? only one of the statements is true. statements (i) and (ii) are true. statements (i) and (iii) are true. statements (ii) and (iii) are true. all three statements are true.

nanotechnology is a powerful tool in biomaterials research as it creates numerous possibilities for the engineering of functional molecules. nano-bio refers to projected ability to incorporate biomimicry into various materials at nanoscale.  

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is and electronic configuration of phosphorous is .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.  

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.