State whether these molecules contain an ionic bond or only covalent bonds, and draw their lewis structures (figure 1-16 in the textbook give en values for most of the periodic table). ch2oli i chci chsnh3f

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false