Suppose you increase your walking speed from 1 m/s to 3 m/s

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.

58750.08068 is the answer i think

4d^55s^1 ( third choice)