How many moles are of Li2O are in 9.0 x 10 23 particles of Li2O

1 a

2 d

3 a

4 c

explanation:

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.