If ending inventory for 2017 is understated because certain items were missed in the count, then:

Online amounts available will be incorrect and the company will lose profit from items that could have been purchased. Inventory will look short and theft could be suspected.Company could waste money manufacturing additional amounts and manufacturing overhead can be understated as a result profits could be under or overstated if all orders are not accounted for.

The  atomic nucleus  is the small, dense region consisting of  protons  and  neutrons  at the center of an  atom, discovered in 1911 by  ernest rutherford based on the 1909  gold foil experiment.