The correct answer(reported to the proper number of significant figures)to the following is
(12.67+19.2)(3.99)/(1,36+11.366)=

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.

b. examine and describe cells