In a compound the (atoms/molecules) are (chemically/physically) combined so that the elements that make up the compound (retair their identities and (do/do not) take on a new set of properties.​

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

i wish i could but this one is weird give me abc and i can solve it.